| 1 | |
| 2 | #include "wifi_hal.h" |
| 3 | |
| 4 | #ifndef __WIFI_HAL_COMMON_H__ |
| 5 | #define __WIFI_HAL_COMMON_H__ |
| 6 | |
| 7 | #ifdef LOG_TAG |
| 8 | #undef LOG_TAG |
| 9 | #endif |
| 10 | #define LOG_TAG "WifiHAL" |
| 11 | |
| 12 | #include <utils/Log.h> |
| 13 | #include "nl80211_copy.h" |
| 14 | #include "sync.h" |
| 15 | |
| 16 | #define SOCKET_BUFFER_SIZE (32768U) |
| 17 | #define RECV_BUF_SIZE (4096) |
| 18 | #define DEFAULT_EVENT_CB_SIZE (64) |
| 19 | #define DEFAULT_CMD_SIZE (64) |
| 20 | #define DOT11_OUI_LEN 3 |
| 21 | |
| 22 | typedef struct { |
| 23 | int num_bssid; |
| 24 | mac_addr bssids[MAX_BLACKLIST_BSSID]; |
| 25 | } wifi_bssid_params; |
| 26 | |
| 27 | /* |
| 28 | Vendor OUI - This is a unique identifier that identifies organization. Lets |
| 29 | code Android specific functions with Google OUI; although vendors can do more |
| 30 | with their own OUI's as well. |
| 31 | */ |
| 32 | |
| 33 | const uint32_t GOOGLE_OUI = 0x001A11; |
| 34 | /* TODO: define vendor OUI here */ |
| 35 | |
| 36 | typedef enum { |
| 37 | |
| 38 | GSCAN_ATTRIBUTE_NUM_BUCKETS = 10, |
| 39 | GSCAN_ATTRIBUTE_BASE_PERIOD, |
| 40 | GSCAN_ATTRIBUTE_BUCKETS_BAND, |
| 41 | GSCAN_ATTRIBUTE_BUCKET_ID, |
| 42 | GSCAN_ATTRIBUTE_BUCKET_PERIOD, |
| 43 | GSCAN_ATTRIBUTE_BUCKET_NUM_CHANNELS, |
| 44 | GSCAN_ATTRIBUTE_BUCKET_CHANNELS, |
| 45 | GSCAN_ATTRIBUTE_NUM_AP_PER_SCAN, |
| 46 | GSCAN_ATTRIBUTE_REPORT_THRESHOLD, |
| 47 | GSCAN_ATTRIBUTE_NUM_SCANS_TO_CACHE, |
| 48 | GSCAN_ATTRIBUTE_REPORT_THRESHOLD_NUM_SCANS, |
| 49 | GSCAN_ATTRIBUTE_BAND = GSCAN_ATTRIBUTE_BUCKETS_BAND, |
| 50 | |
| 51 | GSCAN_ATTRIBUTE_ENABLE_FEATURE = 20, |
| 52 | GSCAN_ATTRIBUTE_SCAN_RESULTS_COMPLETE, /* indicates no more results */ |
| 53 | GSCAN_ATTRIBUTE_REPORT_EVENTS, |
| 54 | |
| 55 | /* remaining reserved for additional attributes */ |
| 56 | GSCAN_ATTRIBUTE_NUM_OF_RESULTS = 30, |
| 57 | GSCAN_ATTRIBUTE_SCAN_RESULTS, /* flat array of wifi_scan_result */ |
| 58 | GSCAN_ATTRIBUTE_NUM_CHANNELS, |
| 59 | GSCAN_ATTRIBUTE_CHANNEL_LIST, |
| 60 | GSCAN_ATTRIBUTE_SCAN_ID, |
| 61 | GSCAN_ATTRIBUTE_SCAN_FLAGS, |
| 62 | GSCAN_ATTRIBUTE_SCAN_BUCKET_BIT, |
| 63 | |
| 64 | /* remaining reserved for additional attributes */ |
| 65 | |
| 66 | GSCAN_ATTRIBUTE_SSID = 40, |
| 67 | GSCAN_ATTRIBUTE_BSSID, |
| 68 | GSCAN_ATTRIBUTE_CHANNEL, |
| 69 | GSCAN_ATTRIBUTE_RSSI, |
| 70 | GSCAN_ATTRIBUTE_TIMESTAMP, |
| 71 | GSCAN_ATTRIBUTE_RTT, |
| 72 | GSCAN_ATTRIBUTE_RTTSD, |
| 73 | |
| 74 | /* remaining reserved for additional attributes */ |
| 75 | |
| 76 | GSCAN_ATTRIBUTE_HOTLIST_BSSIDS = 50, |
| 77 | GSCAN_ATTRIBUTE_RSSI_LOW, |
| 78 | GSCAN_ATTRIBUTE_RSSI_HIGH, |
| 79 | GSCAN_ATTRIBUTE_HOTLIST_ELEM, |
| 80 | GSCAN_ATTRIBUTE_HOTLIST_FLUSH, |
| 81 | GSCAN_ATTRIBUTE_CHANNEL_NUMBER, |
| 82 | |
| 83 | /* remaining reserved for additional attributes */ |
| 84 | GSCAN_ATTRIBUTE_RSSI_SAMPLE_SIZE = 60, |
| 85 | GSCAN_ATTRIBUTE_LOST_AP_SAMPLE_SIZE, |
| 86 | GSCAN_ATTRIBUTE_MIN_BREACHING, |
| 87 | GSCAN_ATTRIBUTE_SIGNIFICANT_CHANGE_BSSIDS, |
| 88 | |
| 89 | GSCAN_ATTRIBUTE_BUCKET_STEP_COUNT = 70, |
| 90 | GSCAN_ATTRIBUTE_BUCKET_EXPONENT, |
| 91 | GSCAN_ATTRIBUTE_BUCKET_MAX_PERIOD, |
| 92 | |
| 93 | GSCAN_ATTRIBUTE_NUM_BSSID, |
| 94 | GSCAN_ATTRIBUTE_BLACKLIST_BSSID, |
| 95 | |
| 96 | GSCAN_ATTRIBUTE_MAX |
| 97 | |
| 98 | } GSCAN_ATTRIBUTE; |
| 99 | |
| 100 | /* |
| 101 | This enum defines ranges for various commands; commands themselves |
| 102 | can be defined in respective feature headers; i.e. find gscan command |
| 103 | definitions in gscan.cpp |
| 104 | */ |
| 105 | |
| 106 | typedef enum { |
| 107 | /* don't use 0 as a valid subcommand */ |
| 108 | VENDOR_NL80211_SUBCMD_UNSPECIFIED, |
| 109 | |
| 110 | /* define all vendor startup commands between 0x0 and 0x0FFF */ |
| 111 | VENDOR_NL80211_SUBCMD_RANGE_START = 0x0001, |
| 112 | VENDOR_NL80211_SUBCMD_RANGE_END = 0x0FFF, |
| 113 | |
| 114 | /* define all GScan related commands between 0x1000 and 0x10FF */ |
| 115 | ANDROID_NL80211_SUBCMD_GSCAN_RANGE_START = 0x1000, |
| 116 | ANDROID_NL80211_SUBCMD_GSCAN_RANGE_END = 0x10FF, |
| 117 | |
| 118 | /* define all NearbyDiscovery related commands between 0x1100 and 0x11FF */ |
| 119 | ANDROID_NL80211_SUBCMD_NBD_RANGE_START = 0x1100, |
| 120 | ANDROID_NL80211_SUBCMD_NBD_RANGE_END = 0x11FF, |
| 121 | |
| 122 | /* define all RTT related commands between 0x1100 and 0x11FF */ |
| 123 | ANDROID_NL80211_SUBCMD_RTT_RANGE_START = 0x1100, |
| 124 | ANDROID_NL80211_SUBCMD_RTT_RANGE_END = 0x11FF, |
| 125 | |
| 126 | ANDROID_NL80211_SUBCMD_LSTATS_RANGE_START = 0x1200, |
| 127 | ANDROID_NL80211_SUBCMD_LSTATS_RANGE_END = 0x12FF, |
| 128 | |
| 129 | /* define all Logger related commands between 0x1400 and 0x14FF */ |
| 130 | ANDROID_NL80211_SUBCMD_DEBUG_RANGE_START = 0x1400, |
| 131 | ANDROID_NL80211_SUBCMD_DEBUG_RANGE_END = 0x14FF, |
| 132 | |
| 133 | /* define all wifi offload related commands between 0x1400 and 0x14FF */ |
| 134 | ANDROID_NL80211_SUBCMD_WIFI_OFFLOAD_RANGE_START = 0x1400, |
| 135 | ANDROID_NL80211_SUBCMD_WIFI_OFFLOAD_RANGE_END = 0x14FF, |
| 136 | |
| 137 | /* Range for NAN commands */ |
| 138 | ANDROID_NL80211_SUBCMD_NAN_RANGE_START = 0x1500, |
| 139 | ANDROID_NL80211_SUBCMD_NAN_RANGE_END = 0x15FF, |
| 140 | /* This is reserved for future usage */ |
| 141 | |
| 142 | } ANDROID_VENDOR_SUB_COMMAND; |
| 143 | |
| 144 | typedef enum { |
| 145 | SLSI_NL80211_VENDOR_SUBCMD_GET_CAPABILITIES = ANDROID_NL80211_SUBCMD_GSCAN_RANGE_START, |
| 146 | SLSI_NL80211_VENDOR_SUBCMD_GET_VALID_CHANNELS, |
| 147 | SLSI_NL80211_VENDOR_SUBCMD_ADD_GSCAN, |
| 148 | SLSI_NL80211_VENDOR_SUBCMD_DEL_GSCAN, |
| 149 | SLSI_NL80211_VENDOR_SUBCMD_GET_SCAN_RESULTS, |
| 150 | SLSI_NL80211_VENDOR_SUBCMD_SET_BSSID_HOTLIST, |
| 151 | SLSI_NL80211_VENDOR_SUBCMD_RESET_BSSID_HOTLIST, |
| 152 | SLSI_NL80211_VENDOR_SUBCMD_GET_HOTLIST_RESULTS, |
| 153 | SLSI_NL80211_VENDOR_SUBCMD_SET_SIGNIFICANT_CHANGE, |
| 154 | SLSI_NL80211_VENDOR_SUBCMD_RESET_SIGNIFICANT_CHANGE, |
| 155 | SLSI_NL80211_VENDOR_SUBCMD_SET_GSCAN_OUI, |
| 156 | SLSI_NL80211_VENDOR_SUBCMD_SET_NODFS, |
| 157 | SLSI_NL80211_VENDOR_SUBCMD_START_KEEP_ALIVE_OFFLOAD, |
| 158 | SLSI_NL80211_VENDOR_SUBCMD_STOP_KEEP_ALIVE_OFFLOAD, |
| 159 | SLSI_NL80211_VENDOR_SUBCMD_SET_BSSID_BLACKLIST, |
| 160 | SLSI_NL80211_VENDOR_SUBCMD_SET_EPNO_LIST, |
| 161 | SLSI_NL80211_VENDOR_SUBCMD_SET_HS_LIST, |
| 162 | SLSI_NL80211_VENDOR_SUBCMD_RESET_HS_LIST, |
| 163 | SLSI_NL80211_VENDOR_SUBCMD_SET_RSSI_MONITOR, |
| 164 | SLSI_NL80211_VENDOR_SUBCMD_LLS_SET_INFO, |
| 165 | SLSI_NL80211_VENDOR_SUBCMD_LLS_GET_INFO, |
| 166 | SLSI_NL80211_VENDOR_SUBCMD_LLS_CLEAR_INFO, |
| 167 | SLSI_NL80211_VENDOR_SUBCMD_GET_FEATURE_SET, |
| 168 | SLSI_NL80211_VENDOR_SUBCMD_SET_COUNTRY_CODE, |
| 169 | SLSI_NL80211_VENDOR_SUBCMD_CONFIGURE_ND_OFFLOAD, |
| 170 | SLSI_NL80211_VENDOR_SUBCMD_GET_ROAMING_CAPABILITIES, |
| 171 | SLSI_NL80211_VENDOR_SUBCMD_SET_ROAMING_STATE, |
| 172 | |
| 173 | SLSI_NL80211_VENDOR_SUBCMD_NAN_ENABLE = ANDROID_NL80211_SUBCMD_NAN_RANGE_START, |
| 174 | SLSI_NL80211_VENDOR_SUBCMD_NAN_DISABLE, |
| 175 | SLSI_NL80211_VENDOR_SUBCMD_NAN_PUBLISH, |
| 176 | SLSI_NL80211_VENDOR_SUBCMD_NAN_PUBLISHCANCEL, |
| 177 | SLSI_NL80211_VENDOR_SUBCMD_NAN_SUBSCRIBE, |
| 178 | SLSI_NL80211_VENDOR_SUBCMD_NAN_SUBSCRIBECANCEL, |
| 179 | SLSI_NL80211_VENDOR_SUBCMD_NAN_TXFOLLOWUP, |
| 180 | SLSI_NL80211_VENDOR_SUBCMD_NAN_CONFIG, |
| 181 | SLSI_NL80211_VENDOR_SUBCMD_NAN_CAPABILITIES, |
| 182 | SLSI_NL80211_VENDOR_SUBCMD_RTT_GET_CAPABILITIES = ANDROID_NL80211_SUBCMD_RTT_RANGE_START, |
| 183 | SLSI_NL80211_VENDOR_SUBCMD_RTT_RANGE_START, |
| 184 | SLSI_NL80211_VENDOR_SUBCMD_RTT_RANGE_CANCEL |
| 185 | } WIFI_SUB_COMMAND; |
| 186 | |
| 187 | typedef enum { |
| 188 | GSCAN_EVENT_SIGNIFICANT_CHANGE_RESULTS , |
| 189 | GSCAN_EVENT_HOTLIST_RESULTS_FOUND, |
| 190 | GSCAN_EVENT_SCAN_RESULTS_AVAILABLE, |
| 191 | GSCAN_EVENT_FULL_SCAN_RESULTS, |
| 192 | GSCAN_EVENT_COMPLETE_SCAN, |
| 193 | GSCAN_EVENT_HOTLIST_RESULTS_LOST, |
| 194 | WIFI_SUBCMD_KEY_MGMT_ROAM_AUTH, /* Handled by supplicant. not in Wifi-HAL */ |
| 195 | WIFI_HANGED_EVENT, |
| 196 | WIFI_EPNO_EVENT, |
| 197 | WIFI_HOTSPOT_MATCH, |
| 198 | WIFI_RSSI_REPORT_EVENT, |
| 199 | ENHANCE_LOGGER_RING_EVENT, |
| 200 | ENHANCE_LOGGER_MEM_DUMP_EVENT, |
| 201 | /* NAN events start */ |
| 202 | SLSI_NAN_EVENT_RESPONSE, |
| 203 | SLSI_NAN_EVENT_PUBLISH_TERMINATED, |
| 204 | SLSI_NAN_EVENT_MATCH, |
| 205 | SLSI_NAN_EVENT_MATCH_EXPIRED, |
| 206 | SLSI_NAN_EVENT_SUBSCRIBE_TERMINATED, |
| 207 | SLSI_NAN_EVENT_FOLLOWUP, |
| 208 | SLSI_NAN_EVENT_DISCOVERY_ENGINE, |
| 209 | SLSI_NAN_EVENT_DISABLED, |
| 210 | /* NAN events end */ |
| 211 | SLSI_RTT_RESULT_EVENT, |
| 212 | SLSI_RTT_EVENT_COMPLETE |
| 213 | |
| 214 | } WIFI_EVENT; |
| 215 | |
| 216 | typedef void (*wifi_internal_event_handler) (wifi_handle handle, int events); |
| 217 | |
| 218 | class WifiCommand; |
| 219 | |
| 220 | typedef struct { |
| 221 | int nl_cmd; |
| 222 | uint32_t vendor_id; |
| 223 | int vendor_subcmd; |
| 224 | nl_recvmsg_msg_cb_t cb_func; |
| 225 | void *cb_arg; |
| 226 | } cb_info; |
| 227 | |
| 228 | typedef struct { |
| 229 | wifi_request_id id; |
| 230 | WifiCommand *cmd; |
| 231 | } cmd_info; |
| 232 | |
| 233 | typedef struct { |
| 234 | wifi_handle handle; // handle to wifi data |
| 235 | char name[8+1]; // interface name + trailing null |
| 236 | int id; // id to use when talking to driver |
| 237 | } interface_info; |
| 238 | |
| 239 | typedef struct { |
| 240 | |
| 241 | struct nl_sock *cmd_sock; // command socket object |
| 242 | struct nl_sock *event_sock; // event socket object |
| 243 | int nl80211_family_id; // family id for 80211 driver |
| 244 | int cleanup_socks[2]; // sockets used to implement wifi_cleanup |
| 245 | |
| 246 | bool in_event_loop; // Indicates that event loop is active |
| 247 | bool clean_up; // Indication to clean up the socket |
| 248 | |
| 249 | wifi_internal_event_handler event_handler; // default event handler |
| 250 | wifi_cleaned_up_handler cleaned_up_handler; // socket cleaned up handler |
| 251 | |
| 252 | cb_info *event_cb; // event callbacks |
| 253 | int num_event_cb; // number of event callbacks |
| 254 | int alloc_event_cb; // number of allocated callback objects |
| 255 | pthread_mutex_t cb_lock; // mutex for the event_cb access |
| 256 | |
| 257 | cmd_info *cmd; // Outstanding commands |
| 258 | int num_cmd; // number of commands |
| 259 | int alloc_cmd; // number of commands allocated |
| 260 | |
| 261 | interface_info **interfaces; // array of interfaces |
| 262 | int num_interfaces; // number of interfaces |
| 263 | |
| 264 | |
| 265 | // add other details |
| 266 | } hal_info; |
| 267 | |
| 268 | wifi_error wifi_register_handler(wifi_handle handle, int cmd, nl_recvmsg_msg_cb_t func, void *arg); |
| 269 | wifi_error wifi_register_vendor_handler(wifi_handle handle, |
| 270 | uint32_t id, int subcmd, nl_recvmsg_msg_cb_t func, void *arg); |
| 271 | |
| 272 | void wifi_unregister_handler(wifi_handle handle, int cmd); |
| 273 | void wifi_unregister_vendor_handler(wifi_handle handle, uint32_t id, int subcmd); |
| 274 | |
| 275 | wifi_error wifi_register_cmd(wifi_handle handle, int id, WifiCommand *cmd); |
| 276 | WifiCommand *wifi_unregister_cmd(wifi_handle handle, int id); |
| 277 | WifiCommand *wifi_get_cmd(wifi_handle handle, int id); |
| 278 | void wifi_unregister_cmd(wifi_handle handle, WifiCommand *cmd); |
| 279 | wifi_error wifi_cancel_cmd(wifi_request_id id, wifi_interface_handle iface); |
| 280 | |
| 281 | interface_info *getIfaceInfo(wifi_interface_handle); |
| 282 | wifi_handle getWifiHandle(wifi_interface_handle handle); |
| 283 | hal_info *getHalInfo(wifi_handle handle); |
| 284 | hal_info *getHalInfo(wifi_interface_handle handle); |
| 285 | wifi_handle getWifiHandle(hal_info *info); |
| 286 | wifi_interface_handle getIfaceHandle(interface_info *info); |
| 287 | |
| 288 | |
| 289 | // some common macros |
| 290 | |
| 291 | #define min(x, y) ((x) < (y) ? (x) : (y)) |
| 292 | #define max(x, y) ((x) > (y) ? (x) : (y)) |
| 293 | |
| 294 | #define NULL_CHECK_RETURN(ptr, str, ret) \ |
| 295 | do { \ |
| 296 | if (!(ptr)) { \ |
| 297 | ALOGE("%s(): null pointer - #ptr (%s)\n", __FUNCTION__, str); \ |
| 298 | return ret; \ |
| 299 | } \ |
| 300 | } while (0) |
| 301 | #endif |
| 302 | |