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      1 /*
      2  * Driver interaction with Linux nl80211/cfg80211
      3  * Copyright (c) 2002-2012, 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 software may be distributed under the terms of the BSD license.
     10  * See README for more details.
     11  */
     12 
     13 #ifndef _DRIVER_NL80211_H_
     14 #define _DRIVER_NL80211_H_
     15 
     16 #include "includes.h"
     17 #include <sys/ioctl.h>
     18 #include <sys/types.h>
     19 #include <sys/stat.h>
     20 #include <fcntl.h>
     21 #include <net/if.h>
     22 #include <netlink/genl/genl.h>
     23 #include <netlink/genl/family.h>
     24 #include <netlink/genl/ctrl.h>
     25 #include <linux/rtnetlink.h>
     26 #include <netpacket/packet.h>
     27 #include <linux/filter.h>
     28 #include <linux/errqueue.h>
     29 #include "nl80211_copy.h"
     30 
     31 #include "common.h"
     32 #include "eloop.h"
     33 #include "utils/list.h"
     34 #include "common/ieee802_11_defs.h"
     35 #include "common/ieee802_11_common.h"
     36 #include "l2_packet/l2_packet.h"
     37 #include "netlink.h"
     38 #include "linux_ioctl.h"
     39 #include "radiotap.h"
     40 #include "radiotap_iter.h"
     41 #include "rfkill.h"
     42 #include "driver.h"
     43 
     44 #ifdef CONFIG_LIBNL20
     45 /* libnl 2.0 compatibility code */
     46 #define nl_handle nl_sock
     47 #define nl80211_handle_alloc nl_socket_alloc_cb
     48 #define nl80211_handle_destroy nl_socket_free
     49 #endif /* CONFIG_LIBNL20 */
     50 
     51 #ifndef IFF_LOWER_UP
     52 #define IFF_LOWER_UP   0x10000         /* driver signals L1 up         */
     53 #endif
     54 #ifndef IFF_DORMANT
     55 #define IFF_DORMANT    0x20000         /* driver signals dormant       */
     56 #endif
     57 
     58 #ifndef IF_OPER_DORMANT
     59 #define IF_OPER_DORMANT 5
     60 #endif
     61 #ifndef IF_OPER_UP
     62 #define IF_OPER_UP 6
     63 #endif
     64 
     65 struct nl80211_global {
     66 	struct dl_list interfaces;
     67 	int if_add_ifindex;
     68 	struct netlink_data *netlink;
     69 	struct nl_cb *nl_cb;
     70 	struct nl_handle *nl;
     71 	int nl80211_id;
     72 	int ioctl_sock; /* socket for ioctl() use */
     73 
     74 	struct nl_handle *nl_event;
     75 };
     76 
     77 struct nl80211_wiphy_data {
     78 	struct dl_list list;
     79 	struct dl_list bsss;
     80 	struct dl_list drvs;
     81 
     82 	struct nl_handle *nl_beacons;
     83 	struct nl_cb *nl_cb;
     84 
     85 	int wiphy_idx;
     86 };
     87 
     88 struct i802_bss {
     89 	struct wpa_driver_nl80211_data *drv;
     90 	struct i802_bss *next;
     91 	int ifindex;
     92 	char ifname[IFNAMSIZ + 1];
     93 	char brname[IFNAMSIZ];
     94 	unsigned int beacon_set:1;
     95 	unsigned int added_if_into_bridge:1;
     96 	unsigned int added_bridge:1;
     97 	unsigned int in_deinit:1;
     98 
     99 	u8 addr[ETH_ALEN];
    100 
    101 	int freq;
    102 
    103 	void *ctx;
    104 	struct nl_handle *nl_preq, *nl_mgmt;
    105 	struct nl_cb *nl_cb;
    106 
    107 	struct nl80211_wiphy_data *wiphy_data;
    108 	struct dl_list wiphy_list;
    109 };
    110 
    111 struct wpa_driver_nl80211_data {
    112 	struct nl80211_global *global;
    113 	struct dl_list list;
    114 	struct dl_list wiphy_list;
    115 	char phyname[32];
    116 	void *ctx;
    117 	int ifindex;
    118 	int if_removed;
    119 	int if_disabled;
    120 	int ignore_if_down_event;
    121 	struct rfkill_data *rfkill;
    122 	struct wpa_driver_capa capa;
    123 	int has_capability;
    124 
    125 	int operstate;
    126 
    127 	int scan_complete_events;
    128 
    129 	struct nl_cb *nl_cb;
    130 
    131 	u8 auth_bssid[ETH_ALEN];
    132 	u8 bssid[ETH_ALEN];
    133 	int associated;
    134 	u8 ssid[32];
    135 	size_t ssid_len;
    136 	enum nl80211_iftype nlmode;
    137 	enum nl80211_iftype ap_scan_as_station;
    138 	unsigned int assoc_freq;
    139 
    140 	int monitor_sock;
    141 	int monitor_ifidx;
    142 	int monitor_refcount;
    143 
    144 	unsigned int disabled_11b_rates:1;
    145 	unsigned int pending_remain_on_chan:1;
    146 	unsigned int in_interface_list:1;
    147 	unsigned int device_ap_sme:1;
    148 	unsigned int poll_command_supported:1;
    149 	unsigned int data_tx_status:1;
    150 	unsigned int scan_for_auth:1;
    151 	unsigned int retry_auth:1;
    152 	unsigned int use_monitor:1;
    153 	unsigned int ignore_next_local_disconnect: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