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      1 /*
      2  * Driver interaction with Linux nl80211/cfg80211
      3  * Copyright (c) 2002-2014, 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/qca-vendor.h"
     35 #include "common/qca-vendor-attr.h"
     36 #include "common/ieee802_11_defs.h"
     37 #include "common/ieee802_11_common.h"
     38 #include "l2_packet/l2_packet.h"
     39 #include "netlink.h"
     40 #include "linux_ioctl.h"
     41 #include "radiotap.h"
     42 #include "radiotap_iter.h"
     43 #include "rfkill.h"
     44 #include "driver.h"
     45 
     46 #ifdef CONFIG_LIBNL20
     47 /* libnl 2.0 compatibility code */
     48 #define nl_handle nl_sock
     49 #define nl80211_handle_alloc nl_socket_alloc_cb
     50 #define nl80211_handle_destroy nl_socket_free
     51 #endif /* CONFIG_LIBNL20 */
     52 
     53 #ifndef IFF_LOWER_UP
     54 #define IFF_LOWER_UP   0x10000         /* driver signals L1 up         */
     55 #endif
     56 #ifndef IFF_DORMANT
     57 #define IFF_DORMANT    0x20000         /* driver signals dormant       */
     58 #endif
     59 
     60 #ifndef IF_OPER_DORMANT
     61 #define IF_OPER_DORMANT 5
     62 #endif
     63 #ifndef IF_OPER_UP
     64 #define IF_OPER_UP 6
     65 #endif
     66 
     67 struct nl80211_global {
     68 	struct dl_list interfaces;
     69 	int if_add_ifindex;
     70 	u64 if_add_wdevid;
     71 	int if_add_wdevid_set;
     72 	struct netlink_data *netlink;
     73 	struct nl_cb *nl_cb;
     74 	struct nl_handle *nl;
     75 	int nl80211_id;
     76 	int ioctl_sock; /* socket for ioctl() use */
     77 
     78 	struct nl_handle *nl_event;
     79 };
     80 
     81 struct nl80211_wiphy_data {
     82 	struct dl_list list;
     83 	struct dl_list bsss;
     84 	struct dl_list drvs;
     85 
     86 	struct nl_handle *nl_beacons;
     87 	struct nl_cb *nl_cb;
     88 
     89 	int wiphy_idx;
     90 };
     91 
     92 struct i802_bss {
     93 	struct wpa_driver_nl80211_data *drv;
     94 	struct i802_bss *next;
     95 	int ifindex;
     96 	u64 wdev_id;
     97 	char ifname[IFNAMSIZ + 1];
     98 	char brname[IFNAMSIZ];
     99 	unsigned int beacon_set:1;
    100 	unsigned int added_if_into_bridge:1;
    101 	unsigned int added_bridge:1;
    102 	unsigned int in_deinit:1;
    103 	unsigned int wdev_id_set:1;
    104 	unsigned int added_if:1;
    105 	unsigned int static_ap:1;
    106 
    107 	u8 addr[ETH_ALEN];
    108 
    109 	int freq;
    110 	int bandwidth;
    111 	int if_dynamic;
    112 
    113 	void *ctx;
    114 	struct nl_handle *nl_preq, *nl_mgmt;
    115 	struct nl_cb *nl_cb;
    116 
    117 	struct nl80211_wiphy_data *wiphy_data;
    118 	struct dl_list wiphy_list;
    119 };
    120 
    121 struct wpa_driver_nl80211_data {
    122 	struct nl80211_global *global;
    123 	struct dl_list list;
    124 	struct dl_list wiphy_list;
    125 	char phyname[32];
    126 	void *ctx;
    127 	int ifindex;
    128 	int if_removed;
    129 	int if_disabled;
    130 	int ignore_if_down_event;
    131 	struct rfkill_data *rfkill;
    132 	struct wpa_driver_capa capa;
    133 	u8 *extended_capa, *extended_capa_mask;
    134 	unsigned int extended_capa_len;
    135 	int has_capability;
    136 
    137 	int operstate;
    138 
    139 	int scan_complete_events;
    140 	enum scan_states {
    141 		NO_SCAN, SCAN_REQUESTED, SCAN_STARTED, SCAN_COMPLETED,
    142 		SCAN_ABORTED, SCHED_SCAN_STARTED, SCHED_SCAN_STOPPED,
    143 		SCHED_SCAN_RESULTS
    144 	} scan_state;
    145 
    146 	struct nl_cb *nl_cb;
    147 
    148 	u8 auth_bssid[ETH_ALEN];
    149 	u8 auth_attempt_bssid[ETH_ALEN];
    150 	u8 bssid[ETH_ALEN];
    151 	u8 prev_bssid[ETH_ALEN];
    152 	int associated;
    153 	u8 ssid[32];
    154 	size_t ssid_len;
    155 	enum nl80211_iftype nlmode;
    156 	enum nl80211_iftype ap_scan_as_station;
    157 	unsigned int assoc_freq;
    158 
    159 	int monitor_sock;
    160 	int monitor_ifidx;
    161 	int monitor_refcount;
    162 
    163 	unsigned int disabled_11b_rates:1;
    164 	unsigned int pending_remain_on_chan:1;
    165 	unsigned int in_interface_list:1;
    166 	unsigned int device_ap_sme:1;
    167 	unsigned int poll_command_supported:1;
    168 	unsigned int data_tx_status:1;
    169 	unsigned int scan_for_auth:1;
    170 	unsigned int retry_auth:1;
    171 	unsigned int use_monitor:1;
    172 	unsigned int ignore_next_local_disconnect:1;
    173 	unsigned int ignore_next_local_deauth:1;
    174 	unsigned int allow_p2p_device:1;
    175 	unsigned int hostapd:1;
    176 	unsigned int start_mode_ap:1;
    177 	unsigned int start_iface_up:1;
    178 	unsigned int test_use_roc_tx:1;
    179 	unsigned int ignore_deauth_event:1;
    180 	unsigned int dfs_vendor_cmd_avail:1;
    181 	unsigned int have_low_prio_scan:1;
    182 
    183 	u64 remain_on_chan_cookie;
    184 	u64 send_action_cookie;
    185 
    186 	unsigned int last_mgmt_freq;
    187 
    188 	struct wpa_driver_scan_filter *filter_ssids;
    189 	size_t num_filter_ssids;
    190 
    191 	struct i802_bss *first_bss;
    192 
    193 	int eapol_tx_sock;
    194 
    195 	int eapol_sock; /* socket for EAPOL frames */
    196 
    197 	int default_if_indices[16];
    198 	int *if_indices;
    199 	int num_if_indices;
    200 
    201 	/* From failed authentication command */
    202 	int auth_freq;
    203 	u8 auth_bssid_[ETH_ALEN];
    204 	u8 auth_ssid[32];
    205 	size_t auth_ssid_len;
    206 	int auth_alg;
    207 	u8 *auth_ie;
    208 	size_t auth_ie_len;
    209 	u8 auth_wep_key[4][16];
    210 	size_t auth_wep_key_len[4];
    211 	int auth_wep_tx_keyidx;
    212 	int auth_local_state_change;
    213 	int auth_p2p;
    214 };
    215 
    216 #endif
    217