275 lines
10 KiB
C++
275 lines
10 KiB
C++
/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Portions copyright (C) 2017 Broadcom Limited
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "wifi_hal.h"
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#ifndef __WIFI_HAL_COMMON_H__
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#define __WIFI_HAL_COMMON_H__
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#define LOG_TAG "WifiHAL"
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#include <log/log.h>
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#include "nl80211_copy.h"
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#include "sync.h"
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#define SOCKET_BUFFER_SIZE (32768U)
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#define RECV_BUF_SIZE (4096)
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#define DEFAULT_EVENT_CB_SIZE (64)
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#define DEFAULT_CMD_SIZE (64)
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#define DOT11_OUI_LEN 3
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#define DOT11_MAX_SSID_LEN 32
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#define MAX_PROBE_RESP_IE_LEN 2048
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/*
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Vendor OUI - This is a unique identifier that identifies organization. Lets
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code Android specific functions with Google OUI; although vendors can do more
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with their own OUI's as well.
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*/
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const uint32_t GOOGLE_OUI = 0x001A11;
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/* TODO: define vendor OUI here */
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/*
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This enum defines ranges for various commands; commands themselves
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can be defined in respective feature headers; i.e. find gscan command
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definitions in gscan.cpp
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*/
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typedef enum {
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/* don't use 0 as a valid subcommand */
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VENDOR_NL80211_SUBCMD_UNSPECIFIED,
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/* define all vendor startup commands between 0x0 and 0x0FFF */
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VENDOR_NL80211_SUBCMD_RANGE_START = 0x0001,
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VENDOR_NL80211_SUBCMD_RANGE_END = 0x0FFF,
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/* define all GScan related commands between 0x1000 and 0x10FF */
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ANDROID_NL80211_SUBCMD_GSCAN_RANGE_START = 0x1000,
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ANDROID_NL80211_SUBCMD_GSCAN_RANGE_END = 0x10FF,
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/* define all NearbyDiscovery related commands between 0x1100 and 0x11FF */
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ANDROID_NL80211_SUBCMD_NBD_RANGE_START = 0x1100,
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ANDROID_NL80211_SUBCMD_NBD_RANGE_END = 0x11FF,
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/* define all RTT related commands between 0x1100 and 0x11FF */
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ANDROID_NL80211_SUBCMD_RTT_RANGE_START = 0x1100,
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ANDROID_NL80211_SUBCMD_RTT_RANGE_END = 0x11FF,
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ANDROID_NL80211_SUBCMD_LSTATS_RANGE_START = 0x1200,
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ANDROID_NL80211_SUBCMD_LSTATS_RANGE_END = 0x12FF,
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/* define all Logger related commands between 0x1400 and 0x14FF */
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ANDROID_NL80211_SUBCMD_DEBUG_RANGE_START = 0x1400,
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ANDROID_NL80211_SUBCMD_DEBUG_RANGE_END = 0x14FF,
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/* define all wifi offload related commands between 0x1600 and 0x16FF */
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ANDROID_NL80211_SUBCMD_WIFI_OFFLOAD_RANGE_START = 0x1600,
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ANDROID_NL80211_SUBCMD_WIFI_OFFLOAD_RANGE_END = 0x16FF,
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/* define all NAN related commands between 0x1700 and 0x17FF */
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ANDROID_NL80211_SUBCMD_NAN_RANGE_START = 0x1700,
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ANDROID_NL80211_SUBCMD_NAN_RANGE_END = 0x17FF,
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/* define all Android Packet Filter related commands between 0x1800 and 0x18FF */
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ANDROID_NL80211_SUBCMD_PKT_FILTER_RANGE_START = 0x1800,
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ANDROID_NL80211_SUBCMD_PKT_FILTER_RANGE_END = 0x18FF,
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/* This is reserved for future usage */
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} ANDROID_VENDOR_SUB_COMMAND;
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typedef enum {
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GSCAN_SUBCMD_GET_CAPABILITIES = ANDROID_NL80211_SUBCMD_GSCAN_RANGE_START,
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GSCAN_SUBCMD_SET_CONFIG, /* 0x1001 */
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GSCAN_SUBCMD_SET_SCAN_CONFIG, /* 0x1002 */
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GSCAN_SUBCMD_ENABLE_GSCAN, /* 0x1003 */
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GSCAN_SUBCMD_GET_SCAN_RESULTS, /* 0x1004 */
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GSCAN_SUBCMD_SCAN_RESULTS, /* 0x1005 */
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GSCAN_SUBCMD_SET_HOTLIST, /* 0x1006 */
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GSCAN_SUBCMD_SET_SIGNIFICANT_CHANGE_CONFIG, /* 0x1007 */
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GSCAN_SUBCMD_ENABLE_FULL_SCAN_RESULTS, /* 0x1008 */
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GSCAN_SUBCMD_GET_CHANNEL_LIST, /* 0x1009 */
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WIFI_SUBCMD_GET_FEATURE_SET, /* 0x100A */
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WIFI_SUBCMD_GET_FEATURE_SET_MATRIX, /* 0x100B */
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WIFI_SUBCMD_SET_PNO_RANDOM_MAC_OUI, /* 0x100C */
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WIFI_SUBCMD_NODFS_SET, /* 0x100D */
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WIFI_SUBCMD_SET_COUNTRY_CODE, /* 0x100E */
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/* Add more sub commands here */
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GSCAN_SUBCMD_SET_EPNO_SSID, /* 0x100F */
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WIFI_SUBCMD_SET_SSID_WHITE_LIST, /* 0x1010 */
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WIFI_SUBCMD_SET_ROAM_PARAMS, /* 0x1011 */
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WIFI_SUBCMD_ENABLE_LAZY_ROAM, /* 0x1012 */
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WIFI_SUBCMD_SET_BSSID_PREF, /* 0x1013 */
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WIFI_SUBCMD_SET_BSSID_BLACKLIST, /* 0x1014 */
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GSCAN_SUBCMD_ANQPO_CONFIG, /* 0x1015 */
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WIFI_SUBCMD_SET_RSSI_MONITOR, /* 0x1016 */
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WIFI_SUBCMD_CONFIG_ND_OFFLOAD, /* 0x1017 */
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/* Add more sub commands here */
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GSCAN_SUBCMD_MAX,
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APF_SUBCMD_GET_CAPABILITIES = ANDROID_NL80211_SUBCMD_PKT_FILTER_RANGE_START,
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APF_SUBCMD_SET_FILTER,
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} WIFI_SUB_COMMAND;
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typedef enum {
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BRCM_RESERVED1,
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BRCM_RESERVED2,
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GSCAN_EVENT_SIGNIFICANT_CHANGE_RESULTS ,
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GSCAN_EVENT_HOTLIST_RESULTS_FOUND,
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GSCAN_EVENT_SCAN_RESULTS_AVAILABLE,
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GSCAN_EVENT_FULL_SCAN_RESULTS,
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RTT_EVENT_COMPLETE,
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GSCAN_EVENT_COMPLETE_SCAN,
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GSCAN_EVENT_HOTLIST_RESULTS_LOST,
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GSCAN_EVENT_EPNO_EVENT,
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GOOGLE_DEBUG_RING_EVENT,
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GOOGLE_DEBUG_MEM_DUMP_EVENT,
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GSCAN_EVENT_ANQPO_HOTSPOT_MATCH,
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GOOGLE_RSSI_MONITOR_EVENT
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} WIFI_EVENT;
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typedef void (*wifi_internal_event_handler) (wifi_handle handle, int events);
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class WifiCommand;
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typedef struct {
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int nl_cmd;
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uint32_t vendor_id;
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int vendor_subcmd;
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nl_recvmsg_msg_cb_t cb_func;
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void *cb_arg;
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} cb_info;
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typedef struct {
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wifi_request_id id;
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WifiCommand *cmd;
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} cmd_info;
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typedef struct {
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wifi_handle handle; // handle to wifi data
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char name[IFNAMSIZ+1]; // interface name + trailing null
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int id; // id to use when talking to driver
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} interface_info;
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typedef struct {
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struct nl_sock *cmd_sock; // command socket object
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struct nl_sock *event_sock; // event socket object
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int nl80211_family_id; // family id for 80211 driver
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int cleanup_socks[2]; // sockets used to implement wifi_cleanup
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bool in_event_loop; // Indicates that event loop is active
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bool clean_up; // Indication to exit since cleanup has started
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wifi_internal_event_handler event_handler; // default event handler
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wifi_cleaned_up_handler cleaned_up_handler; // socket cleaned up handler
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cb_info *event_cb; // event callbacks
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int num_event_cb; // number of event callbacks
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int alloc_event_cb; // number of allocated callback objects
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pthread_mutex_t cb_lock; // mutex for the event_cb access
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cmd_info *cmd; // Outstanding commands
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int num_cmd; // number of commands
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int alloc_cmd; // number of commands allocated
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interface_info **interfaces; // array of interfaces
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int num_interfaces; // number of interfaces
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// add other details
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} hal_info;
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#define PNO_SSID_FOUND 0x1
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#define PNO_SSID_LOST 0x2
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typedef struct wifi_pno_result {
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unsigned char ssid[DOT11_MAX_SSID_LEN];
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unsigned char ssid_len;
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signed char rssi;
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u16 channel;
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u16 flags;
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mac_addr bssid;
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} wifi_pno_result_t;
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typedef struct wifi_gscan_result {
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u64 ts; // Time of discovery
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u8 ssid[DOT11_MAX_SSID_LEN+1]; // null terminated
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mac_addr bssid; // BSSID
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u32 channel; // channel frequency in MHz
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s32 rssi; // in db
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u64 rtt; // in nanoseconds
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u64 rtt_sd; // standard deviation in rtt
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u16 beacon_period; // units are Kusec
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u16 capability; // Capability information
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u32 pad;
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} wifi_gscan_result_t;
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typedef struct wifi_gscan_full_result {
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wifi_gscan_result_t fixed;
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u32 scan_ch_bucket; // scan chbucket bitmask
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u32 ie_length; // byte length of Information Elements
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u8 ie_data[1]; // IE data to follow
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} wifi_gscan_full_result_t;
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wifi_error wifi_register_handler(wifi_handle handle, int cmd, nl_recvmsg_msg_cb_t func, void *arg);
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wifi_error wifi_register_vendor_handler(wifi_handle handle,
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uint32_t id, int subcmd, nl_recvmsg_msg_cb_t func, void *arg);
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void wifi_unregister_handler(wifi_handle handle, int cmd);
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void wifi_unregister_vendor_handler(wifi_handle handle, uint32_t id, int subcmd);
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wifi_error wifi_register_cmd(wifi_handle handle, int id, WifiCommand *cmd);
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WifiCommand *wifi_unregister_cmd(wifi_handle handle, int id);
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WifiCommand *wifi_get_cmd(wifi_handle handle, int id);
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void wifi_unregister_cmd(wifi_handle handle, WifiCommand *cmd);
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interface_info *getIfaceInfo(wifi_interface_handle);
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wifi_handle getWifiHandle(wifi_interface_handle handle);
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hal_info *getHalInfo(wifi_handle handle);
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hal_info *getHalInfo(wifi_interface_handle handle);
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wifi_handle getWifiHandle(hal_info *info);
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wifi_interface_handle getIfaceHandle(interface_info *info);
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wifi_error wifi_cancel_cmd(wifi_request_id id, wifi_interface_handle iface);
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// some common macros
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#define min(x, y) ((x) < (y) ? (x) : (y))
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#define max(x, y) ((x) > (y) ? (x) : (y))
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#define NULL_CHECK_RETURN(ptr, str, ret) \
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do { \
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if (!(ptr)) { \
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ALOGE("%s(): null pointer - #ptr (%s)\n", __FUNCTION__, str); \
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return ret; \
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} \
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} while (0)
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#endif
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