1 /* 2 * Driver interaction with Linux nl80211/cfg80211 - definitions 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 "nl80211_copy.h" 17 #include "utils/list.h" 18 #include "driver.h" 19 20 #ifdef CONFIG_LIBNL20 21 /* libnl 2.0 compatibility code */ 22 #define nl_handle nl_sock 23 #define nl80211_handle_alloc nl_socket_alloc_cb 24 #define nl80211_handle_destroy nl_socket_free 25 #endif /* CONFIG_LIBNL20 */ 26 27 struct nl80211_global { 28 void *ctx; 29 struct dl_list interfaces; 30 int if_add_ifindex; 31 u64 if_add_wdevid; 32 int if_add_wdevid_set; 33 struct netlink_data *netlink; 34 struct nl_cb *nl_cb; 35 struct nl_handle *nl; 36 int nl80211_id; 37 int ioctl_sock; /* socket for ioctl() use */ 38 39 struct nl_handle *nl_event; 40 }; 41 42 struct nl80211_wiphy_data { 43 struct dl_list list; 44 struct dl_list bsss; 45 struct dl_list drvs; 46 47 struct nl_handle *nl_beacons; 48 struct nl_cb *nl_cb; 49 50 int wiphy_idx; 51 }; 52 53 struct i802_bss { 54 struct wpa_driver_nl80211_data *drv; 55 struct i802_bss *next; 56 int ifindex; 57 int br_ifindex; 58 u64 wdev_id; 59 char ifname[IFNAMSIZ + 1]; 60 char brname[IFNAMSIZ]; 61 unsigned int beacon_set:1; 62 unsigned int added_if_into_bridge:1; 63 unsigned int added_bridge:1; 64 unsigned int in_deinit:1; 65 unsigned int wdev_id_set:1; 66 unsigned int added_if:1; 67 unsigned int static_ap:1; 68 69 u8 addr[ETH_ALEN]; 70 71 int freq; 72 int bandwidth; 73 int if_dynamic; 74 75 void *ctx; 76 struct nl_handle *nl_preq, *nl_mgmt; 77 struct nl_cb *nl_cb; 78 79 struct nl80211_wiphy_data *wiphy_data; 80 struct dl_list wiphy_list; 81 }; 82 83 struct wpa_driver_nl80211_data { 84 struct nl80211_global *global; 85 struct dl_list list; 86 struct dl_list wiphy_list; 87 char phyname[32]; 88 unsigned int wiphy_idx; 89 u8 perm_addr[ETH_ALEN]; 90 void *ctx; 91 int ifindex; 92 int if_removed; 93 int if_disabled; 94 int ignore_if_down_event; 95 struct rfkill_data *rfkill; 96 struct wpa_driver_capa capa; 97 u8 *extended_capa, *extended_capa_mask; 98 unsigned int extended_capa_len; 99 int has_capability; 100 101 int operstate; 102 103 int scan_complete_events; 104 enum scan_states { 105 NO_SCAN, SCAN_REQUESTED, SCAN_STARTED, SCAN_COMPLETED, 106 SCAN_ABORTED, SCHED_SCAN_STARTED, SCHED_SCAN_STOPPED, 107 SCHED_SCAN_RESULTS 108 } scan_state; 109 110 u8 auth_bssid[ETH_ALEN]; 111 u8 auth_attempt_bssid[ETH_ALEN]; 112 u8 bssid[ETH_ALEN]; 113 u8 prev_bssid[ETH_ALEN]; 114 int associated; 115 u8 ssid[SSID_MAX_LEN]; 116 size_t ssid_len; 117 enum nl80211_iftype nlmode; 118 enum nl80211_iftype ap_scan_as_station; 119 unsigned int assoc_freq; 120 121 int monitor_sock; 122 int monitor_ifidx; 123 int monitor_refcount; 124 125 unsigned int disabled_11b_rates:1; 126 unsigned int pending_remain_on_chan:1; 127 unsigned int in_interface_list:1; 128 unsigned int device_ap_sme:1; 129 unsigned int poll_command_supported:1; 130 unsigned int data_tx_status:1; 131 unsigned int scan_for_auth:1; 132 unsigned int retry_auth:1; 133 unsigned int use_monitor:1; 134 unsigned int ignore_next_local_disconnect:1; 135 unsigned int ignore_next_local_deauth:1; 136 unsigned int hostapd:1; 137 unsigned int start_mode_ap:1; 138 unsigned int start_iface_up:1; 139 unsigned int test_use_roc_tx:1; 140 unsigned int ignore_deauth_event:1; 141 unsigned int vendor_cmd_test_avail:1; 142 unsigned int roaming_vendor_cmd_avail:1; 143 unsigned int dfs_vendor_cmd_avail:1; 144 unsigned int have_low_prio_scan:1; 145 unsigned int force_connect_cmd:1; 146 unsigned int addr_changed:1; 147 unsigned int get_features_vendor_cmd_avail:1; 148 unsigned int set_rekey_offload:1; 149 unsigned int p2p_go_ctwindow_supported:1; 150 unsigned int setband_vendor_cmd_avail:1; 151 unsigned int get_pref_freq_list:1; 152 unsigned int set_prob_oper_freq:1; 153 unsigned int scan_vendor_cmd_avail:1; 154 unsigned int connect_reassoc:1; 155 156 u64 vendor_scan_cookie; 157 u64 remain_on_chan_cookie; 158 u64 send_action_cookie; 159 #define MAX_SEND_ACTION_COOKIES 20 160 u64 send_action_cookies[MAX_SEND_ACTION_COOKIES]; 161 unsigned int num_send_action_cookies; 162 163 unsigned int last_mgmt_freq; 164 165 struct wpa_driver_scan_filter *filter_ssids; 166 size_t num_filter_ssids; 167 168 struct i802_bss *first_bss; 169 170 int eapol_tx_sock; 171 172 int eapol_sock; /* socket for EAPOL frames */ 173 174 struct nl_handle *rtnl_sk; /* nl_sock for NETLINK_ROUTE */ 175 176 int default_if_indices[16]; 177 /* the AP/AP_VLAN iface that is in this bridge */ 178 int default_if_indices_reason[16]; 179 int *if_indices; 180 int *if_indices_reason; 181 int num_if_indices; 182 183 /* From failed authentication command */ 184 int auth_freq; 185 u8 auth_bssid_[ETH_ALEN]; 186 u8 auth_ssid[SSID_MAX_LEN]; 187 size_t auth_ssid_len; 188 int auth_alg; 189 u8 *auth_ie; 190 size_t auth_ie_len; 191 u8 auth_wep_key[4][16]; 192 size_t auth_wep_key_len[4]; 193 int auth_wep_tx_keyidx; 194 int auth_local_state_change; 195 int auth_p2p; 196 197 /* 198 * Tells whether the last scan issued from wpa_supplicant was a normal 199 * scan (NL80211_CMD_TRIGGER_SCAN) or a vendor scan 200 * (NL80211_CMD_VENDOR). 0 if no pending scan request. 201 */ 202 int last_scan_cmd; 203 }; 204 205 struct nl_msg; 206 207 void * nl80211_cmd(struct wpa_driver_nl80211_data *drv, 208 struct nl_msg *msg, int flags, uint8_t cmd); 209 struct nl_msg * nl80211_cmd_msg(struct i802_bss *bss, int flags, uint8_t cmd); 210 struct nl_msg * nl80211_drv_msg(struct wpa_driver_nl80211_data *drv, int flags, 211 uint8_t cmd); 212 struct nl_msg * nl80211_bss_msg(struct i802_bss *bss, int flags, uint8_t cmd); 213 int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv, struct nl_msg *msg, 214 int (*valid_handler)(struct nl_msg *, void *), 215 void *valid_data); 216 int nl80211_create_iface(struct wpa_driver_nl80211_data *drv, 217 const char *ifname, enum nl80211_iftype iftype, 218 const u8 *addr, int wds, 219 int (*handler)(struct nl_msg *, void *), 220 void *arg, int use_existing); 221 void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv, int ifidx); 222 unsigned int nl80211_get_assoc_freq(struct wpa_driver_nl80211_data *drv); 223 enum chan_width convert2width(int width); 224 void nl80211_mark_disconnected(struct wpa_driver_nl80211_data *drv); 225 struct i802_bss * get_bss_ifindex(struct wpa_driver_nl80211_data *drv, 226 int ifindex); 227 int is_ap_interface(enum nl80211_iftype nlmode); 228 int is_sta_interface(enum nl80211_iftype nlmode); 229 int wpa_driver_nl80211_authenticate_retry(struct wpa_driver_nl80211_data *drv); 230 int nl80211_get_link_signal(struct wpa_driver_nl80211_data *drv, 231 struct wpa_signal_info *sig); 232 int nl80211_get_link_noise(struct wpa_driver_nl80211_data *drv, 233 struct wpa_signal_info *sig_change); 234 int nl80211_get_wiphy_index(struct i802_bss *bss); 235 int wpa_driver_nl80211_set_mode(struct i802_bss *bss, 236 enum nl80211_iftype nlmode); 237 int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv, 238 const u8 *addr, int cmd, u16 reason_code, 239 int local_state_change); 240 241 int nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv); 242 void nl80211_remove_monitor_interface(struct wpa_driver_nl80211_data *drv); 243 int nl80211_send_monitor(struct wpa_driver_nl80211_data *drv, 244 const void *data, size_t len, 245 int encrypt, int noack); 246 247 int wpa_driver_nl80211_capa(struct wpa_driver_nl80211_data *drv); 248 struct hostapd_hw_modes * 249 nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags); 250 251 int process_global_event(struct nl_msg *msg, void *arg); 252 int process_bss_event(struct nl_msg *msg, void *arg); 253 254 #ifdef ANDROID 255 int android_nl_socket_set_nonblocking(struct nl_handle *handle); 256 int android_pno_start(struct i802_bss *bss, 257 struct wpa_driver_scan_params *params); 258 int android_pno_stop(struct i802_bss *bss); 259 extern int wpa_driver_nl80211_driver_cmd(void *priv, char *cmd, char *buf, 260 size_t buf_len); 261 262 #ifdef ANDROID_P2P 263 int wpa_driver_set_p2p_noa(void *priv, u8 count, int start, int duration); 264 int wpa_driver_get_p2p_noa(void *priv, u8 *buf, size_t len); 265 int wpa_driver_set_p2p_ps(void *priv, int legacy_ps, int opp_ps, int ctwindow); 266 int wpa_driver_set_ap_wps_p2p_ie(void *priv, const struct wpabuf *beacon, 267 const struct wpabuf *proberesp, 268 const struct wpabuf *assocresp); 269 #endif /* ANDROID_P2P */ 270 #endif /* ANDROID */ 271 272 273 /* driver_nl80211_scan.c */ 274 275 struct nl80211_bss_info_arg { 276 struct wpa_driver_nl80211_data *drv; 277 struct wpa_scan_results *res; 278 unsigned int assoc_freq; 279 unsigned int ibss_freq; 280 u8 assoc_bssid[ETH_ALEN]; 281 }; 282 283 int bss_info_handler(struct nl_msg *msg, void *arg); 284 void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx); 285 int wpa_driver_nl80211_scan(struct i802_bss *bss, 286 struct wpa_driver_scan_params *params); 287 int wpa_driver_nl80211_sched_scan(void *priv, 288 struct wpa_driver_scan_params *params); 289 int wpa_driver_nl80211_stop_sched_scan(void *priv); 290 struct wpa_scan_results * wpa_driver_nl80211_get_scan_results(void *priv); 291 void nl80211_dump_scan(struct wpa_driver_nl80211_data *drv); 292 int wpa_driver_nl80211_abort_scan(void *priv); 293 int wpa_driver_nl80211_vendor_scan(struct i802_bss *bss, 294 struct wpa_driver_scan_params *params); 295 296 #endif /* DRIVER_NL80211_H */ 297
