深入理解 wpa_supplicant(三)
本文为《深入理解Android Wi-Fi、NFC和GPS卷》读书笔记，Android源码为Android 5.1
android-5.1/external/wpa_supplicant_8/wpa_supplicant/wps_supplicant.c
struct wpa_supplicant * wpa_supplicant_add_iface(struct wpa_global *global,
struct wpa_interface *iface)
{
struct wpa_supplicant *wpa_s;
struct wpa_interface t_iface;
struct wpa_ssid *ssid;
if (global == NULL || iface == NULL)
return NULL;
wpa_s = wpa_supplicant_alloc();
if (wpa_s == NULL)
return NULL;
wpa_s->global = global;
t_iface = *iface;
if (global->params.override_driver) {
wpa_printf(MSG_DEBUG, "Override interface parameter: driver "
"('%s' -> '%s')",
iface->driver, global->params.override_driver);
t_iface.driver = global->params.override_driver;
}
if (global->params.override_ctrl_interface) {
wpa_printf(MSG_DEBUG, "Override interface parameter: "
"ctrl_interface ('%s' -> '%s')",
iface->ctrl_interface,
global->params.override_ctrl_interface);
t_iface.ctrl_interface =
global->params.override_ctrl_interface;
}
if (wpa_supplicant_init_iface(wpa_s, &t_iface)) {
wpa_printf(MSG_DEBUG, "Failed to add interface %s",
iface->ifname);
wpa_supplicant_deinit_iface(wpa_s, 0, 0);
return NULL;
}
/* Notify the control interfaces about new iface */
//通过 dbus 通知外界有新的 iface 加入
if (wpas_notify_iface_added(wpa_s)) {
wpa_supplicant_deinit_iface(wpa_s, 1, 0);
return NULL;
}
for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next)
//通过 dbus 通知外界有新的无线网络加入
wpas_notify_network_added(wpa_s, ssid);
//wpa_supplicant 通过 next 变量形成一个单向链表
wpa_s->next = global->ifaces;
global->ifaces = wpa_s;
wpa_dbg(wpa_s, MSG_DEBUG, "Added interface %s", wpa_s->ifname);
wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
return wpa_s;
}该文件只有这一个结构体
android-5.1/external/wpa_supplicant_8/wpa_supplicant/config_ssid.h
struct wpa_ssid {
/**
* next - Next network in global list
*
* This pointer can be used to iterate over all networks. The head of
* this list is stored in the ssid field of struct wpa_config.
*/
struct wpa_ssid *next; //所有 wpa_ssid 都保存在一个单向链表中，链表头保存在结构体 wpa_config 的 ssid 变量中
/**
* pnext - Next network in per-priority list
*
* This pointer can be used to iterate over all networks in the same
* priority class. The heads of these list are stored in the pssid
* fields of struct wpa_config.
*/
struct wpa_ssid *pnext; //wpa_ssid 可按优先级保存在另一个链表中，头指针为 wpa_config 的 pssid 变量
/**
* id - Unique id for the network
*
* This identifier is used as a unique identifier for each network
* block when using the control interface. Each network is allocated an
* id when it is being created, either when reading the configuration
* file or when a new network is added through the control interface.
*/
int id; //每个无线网络都有一个唯一的id
/**
* priority - Priority group
*
* By default, all networks will get same priority group (0). If some
* of the networks are more desirable, this field can be used to change
* the order in which wpa_supplicant goes through the networks when
* selecting a BSS. The priority groups will be iterated in decreasing
* priority (i.e., the larger the priority value, the sooner the
* network is matched against the scan results). Within each priority
* group, networks will be selected based on security policy, signal
* strength, etc.
*
* Please note that AP scanning with scan_ssid=1 and ap_scan=2 mode are
* not using this priority to select the order for scanning. Instead,
* they try the networks in the order that used in the configuration
* file.
*/
int priority; //优先级，默认为0
/**
* ssid - Service set identifier (network name)
*
* This is the SSID for the network. For wireless interfaces, this is
* used to select which network will be used. If set to %NULL (or
* ssid_len=0), any SSID can be used. For wired interfaces, this must
* be set to %NULL. Note: SSID may contain any characters, even nul
* (ASCII 0) and as such, this should not be assumed to be a nul
* terminated string. ssid_len defines how many characters are valid
* and the ssid field is not guaranteed to be nul terminated.
*/
u8 *ssid; //无线网络的ssid，即无线网络名
/**
* ssid_len - Length of the SSID
*/
size_t ssid_len; //ssid变量的长度
/**
* bssid - BSSID
*
* If set, this network block is used only when associating with the AP
* using the configured BSSID
*
* If this is a persistent P2P group (disabled == 2), this is the GO
* Device Address.
*/
u8 bssid[ETH_ALEN]; //ETH_ALEN=6
/**
* bssid_set - Whether BSSID is configured for this network
*/
int bssid_set; //该无线网络是否设置了 bssid 变量
/**
* psk - WPA pre-shared key (256 bits)
*/
u8 psk[32];
/**
* psk_set - Whether PSK field is configured
*/
int psk_set; //是否设置了上述参数
/**
* passphrase - WPA ASCII passphrase
*
* If this is set, psk will be generated using the SSID and passphrase
* configured for the network. ASCII passphrase must be between 8 and
* 63 characters (inclusive).
*/
char *passphrase; //为 WPA 设置的ASCII字符密码
/**
* ext_psk - PSK/passphrase name in external storage
*
* If this is set, PSK/passphrase will be fetched from external storage
* when requesting association with the network.
*/
char *ext_psk;
/**
* pairwise_cipher - Bitfield of allowed pairwise ciphers, WPA_CIPHER_*
*/
int pairwise_cipher; //用于单播数据加密的密钥对类型
/**
* group_cipher - Bitfield of allowed group ciphers, WPA_CIPHER_*
*/
int group_cipher; //用于组播数据加密的密钥对类型
/**
* key_mgmt - Bitfield of allowed key management protocols
*
* WPA_KEY_MGMT_*
*/
int key_mgmt; //密匙管理类型
/**
* bg_scan_period - Background scan period in seconds, 0 to disable, or
* -1 to indicate no change to default driver configuration
*/
int bg_scan_period;
/**
* proto - Bitfield of allowed protocols, WPA_PROTO_*
*/
int proto; //该无线网络支持的安全保护类型
/**
* auth_alg - Bitfield of allowed authentication algorithms
*
* WPA_AUTH_ALG_*
*/
int auth_alg; //该无线网络支持的身份验证类型
/**
* scan_ssid - Scan this SSID with Probe Requests
*
* scan_ssid can be used to scan for APs using hidden SSIDs.
* Note: Many drivers do not support this. ap_mode=2 can be used with
* such drivers to use hidden SSIDs.
*/
int scan_ssid; //是否利用 Probe request 帧扫描此 ssid 对应的无线网络
#ifdef IEEE8021X_EAPOL
#define EAPOL_FLAG_REQUIRE_KEY_UNICAST BIT(0)
#define EAPOL_FLAG_REQUIRE_KEY_BROADCAST BIT(1)
/**
* eapol_flags - Bit field of IEEE 802.1X/EAPOL options (EAPOL_FLAG_*)
*/
int eapol_flags; //EAPOL 选项
/**
* eap - EAP peer configuration for this network
*/
struct eap_peer_config eap; //eap peer端设置信息
#endif /* IEEE8021X_EAPOL */
#define NUM_WEP_KEYS 4
#define MAX_WEP_KEY_LEN 16
/**
* wep_key - WEP keys
*/
u8 wep_key[NUM_WEP_KEYS][MAX_WEP_KEY_LEN];
/**
* wep_key_len - WEP key lengths
*/
size_t wep_key_len[NUM_WEP_KEYS];
/**
* wep_tx_keyidx - Default key index for TX frames using WEP
*/
int wep_tx_keyidx;
/**
* proactive_key_caching - Enable proactive key caching
*
* This field can be used to enable proactive key caching which is also
* known as opportunistic PMKSA caching for WPA2. This is disabled (0)
* by default. Enable by setting this to 1.
*
* Proactive key caching is used to make supplicant assume that the APs
* are using the same PMK and generate PMKSA cache entries without
* doing RSN pre-authentication. This requires support from the AP side
* and is normally used with wireless switches that co-locate the
* authenticator.
*/
int proactive_key_caching;
/**
* mixed_cell - Whether mixed cells are allowed
*
* This option can be used to configure whether so called mixed cells,
* i.e., networks that use both plaintext and encryption in the same
* SSID, are allowed. This is disabled (0) by default. Enable by
* setting this to 1.
*/
int mixed_cell;
#ifdef IEEE8021X_EAPOL
/**
* leap - Number of EAP methods using LEAP
*
* This field should be set to 1 if LEAP is enabled. This is used to
* select IEEE 802.11 authentication algorithm.
*/
int leap;
/**
* non_leap - Number of EAP methods not using LEAP
*
* This field should be set to >0 if any EAP method other than LEAP is
* enabled. This is used to select IEEE 802.11 authentication
* algorithm.
*/
int non_leap;
/**
* eap_workaround - EAP workarounds enabled
*
* wpa_supplicant supports number of "EAP workarounds" to work around
* interoperability issues with incorrectly behaving authentication
* servers. This is recommended to be enabled by default because some
* of the issues are present in large number of authentication servers.
*
* Strict EAP conformance mode can be configured by disabling
* workarounds with eap_workaround = 0.
*/
unsigned int eap_workaround;
#endif /* IEEE8021X_EAPOL */
/**
* mode - IEEE 802.11 operation mode (Infrastucture/IBSS)
*
* 0 = infrastructure (Managed) mode, i.e., associate with an AP.
*
* 1 = IBSS (ad-hoc, peer-to-peer)
*
* 2 = AP (access point)
*
* 3 = P2P Group Owner (can be set in the configuration file)
*
* 4 = P2P Group Formation (used internally; not in configuration
* files)
*
* Note: IBSS can only be used with key_mgmt NONE (plaintext and
* static WEP) and key_mgmt=WPA-NONE (fixed group key TKIP/CCMP). In
* addition, ap_scan has to be set to 2 for IBSS. WPA-None requires
* following network block options: proto=WPA, key_mgmt=WPA-NONE,
* pairwise=NONE, group=TKIP (or CCMP, but not both), and psk must also
* be set (either directly or using ASCII passphrase).
*/
enum wpas_mode { //枚举变量
WPAS_MODE_INFRA = 0, //代表基础结构型网络中的STA
WPAS_MODE_IBSS = 1, //代表IBSS网络的模式
WPAS_MODE_AP = 2, //代表基础结构型网络中的AP
WPAS_MODE_P2P_GO = 3, //P2P 相关
WPAS_MODE_P2P_GROUP_FORMATION = 4,
} mode;
/**
* disabled - Whether this network is currently disabled
*
* 0 = this network can be used (default).
* 1 = this network block is disabled (can be enabled through
* ctrl_iface, e.g., with wpa_cli or wpa_gui).
* 2 = this network block includes parameters for a persistent P2P
* group (can be used with P2P ctrl_iface commands)
*/
int disabled;
/**
* peerkey - Whether PeerKey handshake for direct links is allowed
*
* This is only used when both RSN/WPA2 and IEEE 802.11e (QoS) are
* enabled.
*
* 0 = disabled (default)
* 1 = enabled
*/
int peerkey;
/**
* id_str - Network identifier string for external scripts
*
* This value is passed to external ctrl_iface monitors in
* WPA_EVENT_CONNECTED event and wpa_cli sets this as WPA_ID_STR
* environment variable for action scripts.
*/
char *id_str;
#ifdef CONFIG_IEEE80211W
/**
* ieee80211w - Whether management frame protection is enabled
*
* This value is used to configure policy for management frame
* protection (IEEE 802.11w). 0 = disabled, 1 = optional, 2 = required.
*/
enum mfp_options ieee80211w;
#endif /* CONFIG_IEEE80211W */
/**
* frequency - Channel frequency in megahertz (MHz) for IBSS
*
* This value is used to configure the initial channel for IBSS (adhoc)
* networks, e.g., 2412 = IEEE 802.11b/g channel 1. It is ignored in
* the infrastructure mode. In addition, this value is only used by the
* station that creates the IBSS. If an IBSS network with the
* configured SSID is already present, the frequency of the network
* will be used instead of this configured value.
*/
int frequency;
int ht40;
/**
* wpa_ptk_rekey - Maximum lifetime for PTK in seconds
*
* This value can be used to enforce rekeying of PTK to mitigate some
* attacks against TKIP deficiencies.
*/
int wpa_ptk_rekey;
/**
* scan_freq - Array of frequencies to scan or %NULL for all
*
* This is an optional zero-terminated array of frequencies in
* megahertz (MHz) to include in scan requests when searching for this
* network. This can be used to speed up scanning when the network is
* known to not use all possible channels.
*/
int *scan_freq;
/**
* bgscan - Background scan and roaming parameters or %NULL if none
*
* This is an optional set of parameters for background scanning and
* roaming within a network (ESS) in following format:
* :
*/
char *bgscan;
/**
* ignore_broadcast_ssid - Hide SSID in AP mode
*
* Send empty SSID in beacons and ignore probe request frames that do
* not specify full SSID, i.e., require stations to know SSID.
* default: disabled (0)
* 1 = send empty (length=0) SSID in beacon and ignore probe request
* for broadcast SSID
* 2 = clear SSID (ASCII 0), but keep the original length (this may be
* required with some clients that do not support empty SSID) and
* ignore probe requests for broadcast SSID
*/
int ignore_broadcast_ssid;
/**
* freq_list - Array of allowed frequencies or %NULL for all
*
* This is an optional zero-terminated array of frequencies in
* megahertz (MHz) to allow for selecting the BSS. If set, scan results
* that do not match any of the specified frequencies are not
* considered when selecting a BSS.
*/
int *freq_list;
/**
* p2p_client_list - List of P2P Clients in a persistent group (GO)
*
* This is a list of P2P Clients (P2P Device Address) that have joined
* the persistent group. This is maintained on the GO for persistent
* group entries (disabled == 2).
*/
u8 *p2p_client_list;
/**
* num_p2p_clients - Number of entries in p2p_client_list
*/
size_t num_p2p_clients;
#ifndef P2P_MAX_STORED_CLIENTS
#define P2P_MAX_STORED_CLIENTS 100
#endif /* P2P_MAX_STORED_CLIENTS */
/**
* p2p_group - Network generated as a P2P group (used internally)
*/
int p2p_group;
/**
* p2p_persistent_group - Whether this is a persistent group
*/
int p2p_persistent_group;
/**
* temporary - Whether this network is temporary and not to be saved
*/
int temporary;
/**
* export_keys - Whether keys may be exported
*
* This attribute will be set when keys are determined through
* WPS or similar so that they may be exported.
*/
int export_keys;
#ifdef ANDROID_P2P
/**
* assoc_retry - Number of times association should be retried.
*/
int assoc_retry;
#endif
#ifdef CONFIG_HT_OVERRIDES
/**
* disable_ht - Disable HT (IEEE 802.11n) for this network
*
* By default, use it if it is available, but this can be configured
* to 1 to have it disabled.
*/
int disable_ht;
/**
* disable_ht40 - Disable HT40 for this network
*
* By default, use it if it is available, but this can be configured
* to 1 to have it disabled.
*/
int disable_ht40;
/**
* disable_max_amsdu - Disable MAX A-MSDU
*
* A-MDSU will be 3839 bytes when disabled, or 7935
* when enabled (assuming it is otherwise supported)
* -1 (default) means do not apply any settings to the kernel.
*/
int disable_max_amsdu;
/**
* ampdu_factor - Maximum A-MPDU Length Exponent
*
* Value: 0-3, see 7.3.2.56.3 in IEEE Std 802.11n-2009.
*/
int ampdu_factor;
/**
* ampdu_density - Minimum A-MPDU Start Spacing
*
* Value: 0-7, see 7.3.2.56.3 in IEEE Std 802.11n-2009.
*/
int ampdu_density;
/**
* ht_mcs - Allowed HT-MCS rates, in ASCII hex: ffff0000...
*
* By default (empty string): Use whatever the OS has configured.
*/
char *ht_mcs;
#endif /* CONFIG_HT_OVERRIDES */
/**
* ap_max_inactivity - Timeout in seconds to detect STA's inactivity
*
* This timeout value is used in AP mode to clean up inactive stations.
* By default: 300 seconds.
*/
int ap_max_inactivity;
/**
* dtim_period - DTIM period in Beacon intervals
* By default: 2
*/
int dtim_period;
/**
* auth_failures - Number of consecutive authentication failures
*/
unsigned int auth_failures;
/**
* disabled_until - Network block disabled until this time if non-zero
*/
struct os_time disabled_until;
}; struct wpa_supplicant {
struct wpa_global *global; //指向 wpa_global 对象
struct wpa_radio *radio; /* shared radio context */
struct dl_list radio_list; /* list head: struct wpa_radio::ifaces */
struct wpa_supplicant *parent;
struct wpa_supplicant *next; //所有的 wpa_supplicant 对象都保存在一个单向链表中
struct l2_packet_data *l2; //用于处理 EAP 和 EAPOL 消息， L2 是 Link Layer的简写
struct l2_packet_data *l2_br;
unsigned char own_addr[ETH_ALEN]; //ETH_ALEN=16
unsigned char perm_addr[ETH_ALEN];
char ifname[100];
#ifdef CONFIG_CTRL_IFACE_DBUS
char *dbus_path;
#endif /* CONFIG_CTRL_IFACE_DBUS */
#ifdef CONFIG_CTRL_IFACE_DBUS_NEW
char *dbus_new_path;
char *dbus_groupobj_path;
#ifdef CONFIG_AP
char *preq_notify_peer;
#endif /* CONFIG_AP */
#endif /* CONFIG_CTRL_IFACE_DBUS_NEW */
char bridge_ifname[16];
char *confname; //配置文件名
char *confanother;
struct wpa_config *conf; //解析配置文件后得到的配置信息
int countermeasures;
struct os_reltime last_michael_mic_error;
u8 bssid[ETH_ALEN]; //表示此 supplicant 链接到的无线网络的 BSSID
u8 pending_bssid[ETH_ALEN]; /* If wpa_state == WPA_ASSOCIATING, this
* field contains the target BSSID. 当supplicant还处于关联过程中时，该变量保存目标无线网络的BSSID */
int reassociate; /* reassociation requested 是否重新关联*/
int disconnected; /* all connections disabled; i.e., do no reassociate
* before this has been cleared 此supplicant 是否被禁止链接无线网络*/
struct wpa_ssid *current_ssid; //当前使用的 wpa_ssid 对象
struct wpa_ssid *last_ssid;
struct wpa_bss *current_bss; //当前使用的 wpa_bss 对象
int ap_ies_from_associnfo;
unsigned int assoc_freq;
/* Selected configuration (based on Beacon/ProbeResp WPA IE) */
int pairwise_cipher; //此 supplicant 选择的单播数据加密类型
int group_cipher;
int key_mgmt;
int wpa_proto;
int mgmt_group_cipher;
void *drv_priv; /* private data used by driver_ops 驱动对应的上下文信息*/
void *global_drv_priv; //驱动对应的全局上下文信息*/
u8 *bssid_filter;
size_t bssid_filter_count;
u8 *disallow_aps_bssid;
size_t disallow_aps_bssid_count;
struct wpa_ssid_value *disallow_aps_ssid;
size_t disallow_aps_ssid_count;
enum { WPA_SETBAND_AUTO, WPA_SETBAND_5G, WPA_SETBAND_2G } setband;
/* Preferred network for the next connection attempt */
struct wpa_ssid *next_ssid;
/* previous scan was wildcard when interleaving between
* wildcard scans and specific SSID scan when max_ssids=1 */
int prev_scan_wildcard;
struct wpa_ssid *prev_scan_ssid; /* previously scanned SSID;
* NULL = not yet initialized (start
* with wildcard SSID)
* WILDCARD_SSID_SCAN = wildcard
* SSID was used in the previous scan
*/
#define WILDCARD_SSID_SCAN ((struct wpa_ssid *) 1)
struct wpa_ssid *prev_sched_ssid; /* last SSID used in sched scan */
int sched_scan_timeout;
int sched_scan_interval;
int first_sched_scan;
int sched_scan_timed_out;
void (*scan_res_handler)(struct wpa_supplicant *wpa_s,
struct wpa_scan_results *scan_res);
struct dl_list bss; /* struct wpa_bss::list 保存此 supplicant 搜索到的周围的无线网络*/
struct dl_list bss_id; /* struct wpa_bss::list_id */
size_t num_bss;
unsigned int bss_update_idx;
unsigned int bss_next_id;
/*
* Pointers to BSS entries in the order they were in the last scan
* results.
*/
struct wpa_bss **last_scan_res;
unsigned int last_scan_res_used;
unsigned int last_scan_res_size;
struct os_reltime last_scan;
struct wpa_driver_ops *driver; //此 supplicant 对应的驱动对象
int interface_removed; /* whether the network interface has been
* removed */
struct wpa_sm *wpa; //WPA 状态机
struct eapol_sm *eapol; //eapol 状态机
struct ctrl_iface_priv *ctrl_iface; //此 supplicant 对应的控制接口对象
enum wpa_states wpa_state; //supplicant 当前的状态
struct wpa_radio_work *scan_work;
int scanning;
int sched_scanning;
int new_connection;
int eapol_received; /* number of EAPOL packets received after the
* previous association event */
struct scard_data *scard;
char imsi[20];
int mnc_len;
unsigned char last_eapol_src[ETH_ALEN];
unsigned int keys_cleared; /* bitfield of key indexes that the driver is
* known not to be configured with a key */
struct wpa_blacklist *blacklist; //黑名单，将不会连接黑名单中的无线网络
/**
* extra_blacklist_count - Sum of blacklist counts after last connection
*
* This variable is used to maintain a count of temporary blacklisting
* failures (maximum number for any BSS) over blacklist clear
* operations. This is needed for figuring out whether there has been
* failures prior to the last blacklist clear operation which happens
* whenever no other not-blacklisted BSS candidates are available. This
* gets cleared whenever a connection has been established successfully.
*/
int extra_blacklist_count;
/**
* scan_req - Type of the scan request
*/
enum scan_req_type {
/**
* NORMAL_SCAN_REQ - Normal scan request
*
* This is used for scans initiated by wpa_supplicant to find an
* AP for a connection.
*/
NORMAL_SCAN_REQ,
/**
* INITIAL_SCAN_REQ - Initial scan request
*
* This is used for the first scan on an interface to force at
* least one scan to be run even if the configuration does not
* include any enabled networks.
*/
INITIAL_SCAN_REQ,
/**
* MANUAL_SCAN_REQ - Manual scan request
*
* This is used for scans where the user request a scan or
* a specific wpa_supplicant operation (e.g., WPS) requires scan
* to be run.
*/
MANUAL_SCAN_REQ
} scan_req, last_scan_req;
struct os_reltime scan_trigger_time, scan_start_time;
int scan_runs; /* number of scan runs since WPS was started */
int *next_scan_freqs;
int *manual_scan_freqs;
int *manual_sched_scan_freqs;
unsigned int manual_scan_passive:1;
unsigned int manual_scan_use_id:1;
unsigned int manual_scan_only_new:1;
unsigned int own_scan_requested:1;
unsigned int own_scan_running:1;
unsigned int external_scan_running:1;
unsigned int clear_driver_scan_cache:1;
unsigned int manual_scan_id;
int scan_interval; /* time in sec between scans to find suitable AP */
int normal_scans; /* normal scans run before sched_scan */
int scan_for_connection; /* whether the scan request was triggered for
* finding a connection */
#define MAX_SCAN_ID 16
int scan_id[MAX_SCAN_ID];
unsigned int scan_id_count;
unsigned int drv_flags;
unsigned int drv_enc;
/*
* A bitmap of supported protocols for probe response offload. See
* struct wpa_driver_capa in driver.h
*/
unsigned int probe_resp_offloads;
/* extended capabilities supported by the driver */
const u8 *extended_capa, *extended_capa_mask;
unsigned int extended_capa_len;
int max_scan_ssids;
int max_sched_scan_ssids;
int sched_scan_supported;
unsigned int max_match_sets;
unsigned int max_remain_on_chan;
unsigned int max_stations;
int pending_mic_error_report;
int pending_mic_error_pairwise;
int mic_errors_seen; /* Michael MIC errors with the current PTK */
struct wps_context *wps;
int wps_success; /* WPS success event received */
struct wps_er *wps_er;
unsigned int wps_run;
int blacklist_cleared;
struct wpabuf *pending_eapol_rx;
struct os_reltime pending_eapol_rx_time;
u8 pending_eapol_rx_src[ETH_ALEN];
unsigned int last_eapol_matches_bssid:1;
unsigned int eap_expected_failure:1;
unsigned int reattach:1; /* reassociation to the same BSS requested */
unsigned int mac_addr_changed:1;
struct os_reltime last_mac_addr_change;
int last_mac_addr_style;
struct ibss_rsn *ibss_rsn;
int set_sta_uapsd;
int sta_uapsd;
int set_ap_uapsd;
int ap_uapsd;
#ifdef CONFIG_SME
struct {
u8 ssid[32];
size_t ssid_len;
int freq;
u8 assoc_req_ie[200];
size_t assoc_req_ie_len;
int mfp;
int ft_used;
u8 mobility_domain[2];
u8 *ft_ies;
size_t ft_ies_len;
u8 prev_bssid[ETH_ALEN];
int prev_bssid_set;
int auth_alg;
int proto;
int sa_query_count; /* number of pending SA Query requests;
* 0 = no SA Query in progress */
int sa_query_timed_out;
u8 *sa_query_trans_id; /* buffer of WLAN_SA_QUERY_TR_ID_LEN *
* sa_query_count octets of pending
* SA Query transaction identifiers */
struct os_reltime sa_query_start;
struct os_reltime last_unprot_disconnect;
u8 sched_obss_scan;
u16 obss_scan_int;
u16 bss_max_idle_period;
#ifdef CONFIG_SAE
struct sae_data sae;
struct wpabuf *sae_token;
int sae_group_index;
#endif /* CONFIG_SAE */
} sme;
#endif /* CONFIG_SME */
#ifdef CONFIG_AP
struct hostapd_iface *ap_iface;
void (*ap_configured_cb)(void *ctx, void *data);
void *ap_configured_cb_ctx;
void *ap_configured_cb_data;
#endif /* CONFIG_AP */
unsigned int off_channel_freq;
struct wpabuf *pending_action_tx;
u8 pending_action_src[ETH_ALEN];
u8 pending_action_dst[ETH_ALEN];
u8 pending_action_bssid[ETH_ALEN];
unsigned int pending_action_freq;
int pending_action_no_cck;
int pending_action_without_roc;
unsigned int pending_action_tx_done:1;
void (*pending_action_tx_status_cb)(struct wpa_supplicant *wpa_s,
unsigned int freq, const u8 *dst,
const u8 *src, const u8 *bssid,
const u8 *data, size_t data_len,
enum offchannel_send_action_result
result);
unsigned int roc_waiting_drv_freq;
int action_tx_wait_time;
int p2p_mgmt;
#ifdef CONFIG_P2P
struct p2p_go_neg_results *go_params;
int create_p2p_iface;
u8 pending_interface_addr[ETH_ALEN];
char pending_interface_name[100];
int pending_interface_type;
int p2p_group_idx;
unsigned int pending_listen_freq;
unsigned int pending_listen_duration;
enum {
NOT_P2P_GROUP_INTERFACE,
P2P_GROUP_INTERFACE_PENDING,
P2P_GROUP_INTERFACE_GO,
P2P_GROUP_INTERFACE_CLIENT
} p2p_group_interface;
struct p2p_group *p2p_group;
int p2p_long_listen; /* remaining time in long Listen state in ms */
char p2p_pin[10];
int p2p_wps_method;
u8 p2p_auth_invite[ETH_ALEN];
int p2p_sd_over_ctrl_iface;
int p2p_in_provisioning;
int p2p_in_invitation;
int p2p_invite_go_freq;
int pending_invite_ssid_id;
int show_group_started;
u8 go_dev_addr[ETH_ALEN];
int pending_pd_before_join;
u8 pending_join_iface_addr[ETH_ALEN];
u8 pending_join_dev_addr[ETH_ALEN];
int pending_join_wps_method;
u8 p2p_join_ssid[32];
size_t p2p_join_ssid_len;
int p2p_join_scan_count;
int auto_pd_scan_retry;
int force_long_sd;
u16 pending_pd_config_methods;
enum {
NORMAL_PD, AUTO_PD_GO_NEG, AUTO_PD_JOIN
} pending_pd_use;
/*
* Whether cross connection is disallowed by the AP to which this
* interface is associated (only valid if there is an association).
*/
int cross_connect_disallowed;
/*
* Whether this P2P group is configured to use cross connection (only
* valid if this is P2P GO interface). The actual cross connect packet
* forwarding may not be configured depending on the uplink status.
*/
int cross_connect_enabled;
/* Whether cross connection forwarding is in use at the moment. */
int cross_connect_in_use;
/*
* Uplink interface name for cross connection
*/
char cross_connect_uplink[100];
unsigned int p2p_auto_join:1;
unsigned int p2p_auto_pd:1;
unsigned int p2p_persistent_group:1;
unsigned int p2p_fallback_to_go_neg:1;
unsigned int p2p_pd_before_go_neg:1;
unsigned int p2p_go_ht40:1;
unsigned int p2p_go_vht:1;
unsigned int user_initiated_pd:1;
unsigned int p2p_go_group_formation_completed:1;
unsigned int waiting_presence_resp;
int p2p_first_connection_timeout;
unsigned int p2p_nfc_tag_enabled:1;
unsigned int p2p_peer_oob_pk_hash_known:1;
unsigned int p2p_disable_ip_addr_req:1;
int p2p_persistent_go_freq;
int p2p_persistent_id;
int p2p_go_intent;
int p2p_connect_freq;
struct os_reltime p2p_auto_started;
struct wpa_ssid *p2p_last_4way_hs_fail;
struct wpa_radio_work *p2p_scan_work;
struct wpa_radio_work *p2p_listen_work;
struct wpa_radio_work *p2p_send_action_work;
u16 p2p_oob_dev_pw_id; /* OOB Device Password Id for group formation */
struct wpabuf *p2p_oob_dev_pw; /* OOB Device Password for group
* formation */
u8 p2p_peer_oob_pubkey_hash[WPS_OOB_PUBKEY_HASH_LEN];
u8 p2p_ip_addr_info[3 * 4];
#endif /* CONFIG_P2P */
struct wpa_ssid *bgscan_ssid;
const struct bgscan_ops *bgscan; //background 扫描功能
void *bgscan_priv;
const struct autoscan_ops *autoscan;
struct wpa_driver_scan_params *autoscan_params;
void *autoscan_priv;
struct wpa_ssid *connect_without_scan;
struct wps_ap_info *wps_ap;
size_t num_wps_ap;
int wps_ap_iter;
int after_wps;
int known_wps_freq;
unsigned int wps_freq;
int wps_fragment_size;
int auto_reconnect_disabled;
/* Channel preferences for AP/P2P GO use */
int best_24_freq;
int best_5_freq;
int best_overall_freq;
struct gas_query *gas;
#ifdef CONFIG_INTERWORKING
unsigned int fetch_anqp_in_progress:1;
unsigned int network_select:1;
unsigned int auto_select:1;
unsigned int auto_network_select:1;
unsigned int fetch_all_anqp:1;
unsigned int fetch_osu_info:1;
unsigned int fetch_osu_icon_in_progress:1;
struct wpa_bss *interworking_gas_bss;
unsigned int osu_icon_id;
struct osu_provider *osu_prov;
size_t osu_prov_count;
struct os_reltime osu_icon_fetch_start;
unsigned int num_osu_scans;
unsigned int num_prov_found;
#endif /* CONFIG_INTERWORKING */
unsigned int drv_capa_known;
struct {
struct hostapd_hw_modes *modes;
u16 num_modes;
u16 flags;
} hw;
#ifdef CONFIG_MACSEC
struct ieee802_1x_kay *kay;
#endif /* CONFIG_MACSEC */
int pno;
int pno_sched_pending;
/* WLAN_REASON_* reason codes. Negative if locally generated. */
int disconnect_reason;
struct ext_password_data *ext_pw;
struct wpabuf *last_gas_resp, *prev_gas_resp;
u8 last_gas_addr[ETH_ALEN], prev_gas_addr[ETH_ALEN];
u8 last_gas_dialog_token, prev_gas_dialog_token;
unsigned int no_keep_alive:1;
unsigned int ext_mgmt_frame_handling:1;
#ifdef CONFIG_WNM
u8 wnm_dialog_token;
u8 wnm_reply;
u8 wnm_num_neighbor_report;
u8 wnm_mode;
u16 wnm_dissoc_timer;
u8 wnm_validity_interval;
u8 wnm_bss_termination_duration[12];
struct neighbor_report *wnm_neighbor_report_elements;
#endif /* CONFIG_WNM */
#ifdef CONFIG_TESTING_GET_GTK
u8 last_gtk[32];
size_t last_gtk_len;
#endif /* CONFIG_TESTING_GET_GTK */
unsigned int num_multichan_concurrent;
struct wpa_radio_work *connect_work;
unsigned int ext_work_id;
struct wpabuf *vendor_elem[NUM_VENDOR_ELEM_FRAMES];
};