WiFi关联拒绝log分析以及代码流程 ASSOC_REJECT
2024-06-04 05:19:08
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最近遇到一个问题，连接WiFi时，密码正确，显示saved，但是一直连接不上，分析log发现问题出在关联的时候，关联被拒绝了。
下面根据log看一下流程：
Log：
04-20 16:07:59.571 1958 1958 D wpa_supplicant: nl80211: Drv Event 46 (NL80211_CMD_CONNECT) received for wlan004-20 16:07:59.571 1958 1958 D wpa_supplicant: nl80211: Connect event (status=1 ignore_next_local_disconnect=0)04-20 16:07:59.571 1958 1958 D wpa_supplicant: wlan0: Event ASSOC_REJECT (12) received04-20 16:07:59.571 1958 1958 I wpa_supplicant: wlan0: CTRL-EVENT-ASSOC-REJECT bssid=00:1d:7e:59:71:0c status_code=104-20 16:07:59.571 1958 1958 D wpa_supplicant: Notifying assoc reject to hidl control: 104-20 16:07:59.571 1958 1958 D wpa_supplicant: wlan0: Radio work 'connect'@0x760802e300 done in 2.668643 seconds04-20 16:07:59.571 1958 1958 D wpa_supplicant: wlan0: radio_work_free('connect'@0x760802e300): num_active_works --> 004-20 16:07:59.571 1958 1958 D wpa_supplicant: Added BSSID 00:1d:7e:59:71:0c into blacklist04-20 16:07:59.571 1958 1958 D wpa_supplicant: wlan0: Blacklist count 3 --> request scan in 1000 ms04-20 16:07:59.571 1958 1958 D wpa_supplicant: wlan0: Setting scan request: 1.000000 sec04-20 16:07:59.571 1958 1958 D wpa_supplicant: nl80211: Data frame filter flags=0x004-20 16:07:59.571 1958 1958 E wpa_supplicant: nl80211: Failed to open /proc/sys/net/ipv4/conf/wlan0/drop_unicast_in_l2_multicast: No such file or directory04-20 16:07:59.571 1958 1958 E wpa_supplicant: nl80211: Failed to set IPv4 unicast in multicast filter04-20 16:07:59.571 1958 1958 D wpa_supplicant: wlan0: State: ASSOCIATING -> DISCONNECTED04-20 16:07:59.571 1958 1958 D wpa_supplicant: nl80211: Set wlan0 operstate 0->0 (DORMANT)04-20 16:07:59.571 1958 1958 D wpa_supplicant: netlink: Operstate: ifindex=9 linkmode=-1 (no change), operstate=5 (IF_OPER_DORMANT)04-20 16:07:59.572 712 712 I ConfigStore: android::hardware::configstore::V1_0::ISurfaceFlingerConfigs::hasHDRDisplay retrieved: 004-20 16:07:59.572 1958 1958 D wpa_supplicant: Notifying state change event to hidl control: 004-20 16:07:59.572 1958 1958 D wpa_supplicant: EAPOL: External notification - portEnabled=004-20 16:07:59.572 1958 1958 D wpa_supplicant: EAPOL: External notification - portValid=004-20 16:07:59.572 1958 1958 D wpa_supplicant: EAPOL: External notification - EAP success=004-20 16:07:59.572 1958 1958 E wpa_supplicant: eap_proxy: eap_proxy_notify_config04-20 16:07:59.572 712 712 I ConfigStore: android::hardware::configstore::V1_0::ISurfaceFlingerConfigs::hasHDRDisplay retrieved: 004-20 16:07:59.572 1334 9020 D SupplicantStaIfaceHal: ISupplicantStaIfaceCallback.onAssociationRejected received04-20 16:07:59.572 1334 2052 D SupplicantStaIfaceHal: ISupplicantStaIfaceCallback.onVendorStateChanged received04-20 16:07:59.572 1334 2052 D SupplicantStaIfaceHal: ISupplicantStaIfaceCallback.updateStateIsFourway received04-20 16:07:59.572 1334 1750 D WifiStateMachine: DisconnectedState !ASSOCIATION_REJECTION_EVENT rt=340168/340168 timedOut=0 1 00:1d:7e:59:71:0c blacklist=false04-20 16:07:59.572 1334 1750 D WifiStateMachine: ConnectModeState !ASSOCIATION_REJECTION_EVENT rt=340168/340168 timedOut=0 1 00:1d:7e:59:71:0c blacklist=false04-20 16:07:59.572 1334 1750 W WifiDiags: CaptureBugReport 104-20 16:07:59.600 1334 1334 W WifiStateMachin: type=1400 audit(0.0:649): avc: denied { syslog_read } for scontext=u:r:system_server:s0 tcontext=u:r:kernel:s0 tclass=system permissive=004-20 16:07:59.605 1334 1750 D wifi-jni: no kernel logs04-20 16:07:59.606 1334 1750 D WifiStateMachine: Assocation Rejection event: bssid=00:1d:7e:59:71:0c reason code=1 timedOut=false04-20 16:07:59.606 1066 1066 I /system/bin/tombstoned: found intercept fd 512 for pid 3087 and type kDebuggerdJavaBacktrace04-20 16:07:59.607 1334 1750 D WifiConnectivityManager: trackBssid: disable 00:1d:7e:59:71:0c reason code 104-20 16:07:59.607 3087 3099 I e.process.gapp: Wrote stack traces to '[tombstoned]'04-20 16:07:59.607 1334 1750 V WifiConfigManager: Disable counter for network FWDVT-WPA2 for reason NETWORK_SELECTION_DISABLED_ASSOCIATION_REJECTION is 1 and threshold is 504-20 16:07:59.607 9091 9091 I /system/bin/dumpstate: libdebuggerd_client: done dumping process 308704-20 16:07:59.607 9091 9091 I /system/bin/dumpstate: libdebuggerd_client: started dumping process 327104-20 16:07:59.608 1066 1066 I /system/bin/tombstoned: registered intercept for pid 3271 and type kDebuggerdJavaBacktrace04-20 16:07:59.608 3271 3279 I d.process.acor: Thread[3,tid=3279,WaitingInMainSignalCatcherLoop,Thread*=0x70b0416400,peer=0x12e40220,"Signal Catcher"]: reacting to signal 304-20 16:07:59.608 1334 1750 V WifiLastResortWatchdog: noteConnectionFailureAndTriggerIfNeeded: ["FWDVT-WPA2", 00:1d:7e:59:71:0c, 1]04-20 16:07:59.608 1334 1750 V WifiLastResortWatchdog: updateFailureCountForNetwork: ["FWDVT-WPA2", 00:1d:7e:59:71:0c, 1]04-20 16:07:59.608 3271 3279 I d.process.acor: 04-20 16:07:59.608 1334 1750 V WifiLastResortWatchdog: checkTriggerCondition.04-20 16:07:59.608 1334 1750 V WifiLastResortWatchdog: isRestartNeeded = false04-20 16:07:59.608 1334 1750 D WifiStateMachine: DisconnectedState !SUPPLICANT_STATE_CHANGE_EVENT rt=340204/340204 0 0 SSID: FWDVT-WPA2 BSSID: 00:1d:7e:59:71:0c nid: 3 state: DISCONNECTED04-20 16:07:59.608 1334 1750 D WifiStateMachine: SUPPLICANT_STATE_CHANGE_EVENT state=DISCONNECTED -> state= DISCONNECTED04-20 16:07:59.608 1334 1750 D WifiStateMachine: setDetailed state, old =CONNECTING and new state=DISCONNECTED hidden=false04-20 16:07:59.609 1334 1750 D WifiStateMachine: ConnectModeState !SUPPLICANT_STATE_CHANGE_EVENT rt=340204/340204 0 0 SSID: FWDVT-WPA2 BSSID: 00:1d:7e:59:71:0c nid: 3 state: DISCONNECTED04-20 16:07:59.609 1334 1750 D SupplicantStateTracker: HandshakeState{ when=-2ms what=147499 target=com.android.internal.util.StateMachine$SmHandler }04-20 16:07:59.609 1334 1750 D SupplicantStateTracker: DefaultState{ when=-3ms what=147499 target=com.android.internal.util.StateMachine$SmHandler }04-20 16:07:59.609 1334 1750 E SupplicantStateTracker: Ignoring { when=-3ms what=147499 target=com.android.internal.util.StateMachine$SmHandler }04-20 16:07:59.609 1334 1750 D SupplicantStateTracker: HandshakeState{ when=-1ms what=147462 obj= SSID: FWDVT-WPA2 BSSID: 00:1d:7e:59:71:0c nid: 3 state: DISCONNECTED target=com.android.internal.util.StateMachine$SmHandler }04-20 16:07:59.609 1334 1750 D SupplicantStateTracker: DefaultState{ when=-1ms what=147462 obj= SSID: FWDVT-WPA2 BSSID: 00:1d:7e:59:71:0c nid: 3 state: DISCONNECTED target=com.android.internal.util.StateMachine$SmHandler }
WiFi连接时关联被拒绝，会被加入黑名单。
代码流程：
/external/wpa_supplicant_8/wpa_supplicant/events.c
void wpa_supplicant_event(void *ctx, enum wpa_event_type event,union wpa_event_data *data)
{struct wpa_supplicant *wpa_s = ctx;int resched;
#endif /* CONFIG_IBSS_RSN */case EVENT_ASSOC_REJECT:if (data->assoc_reject.bssid)wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT"bssid=" MACSTR " status_code=%u%s%s%s",MAC2STR(data->assoc_reject.bssid),data->assoc_reject.status_code,data->assoc_reject.timed_out ? " timeout" : "",data->assoc_reject.timeout_reason ? "=" : "",data->assoc_reject.timeout_reason ?data->assoc_reject.timeout_reason : "");elsewpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT"status_code=%u%s%s%s",data->assoc_reject.status_code,data->assoc_reject.timed_out ? " timeout" : "",data->assoc_reject.timeout_reason ? "=" : "",data->assoc_reject.timeout_reason ?data->assoc_reject.timeout_reason : "");wpa_s->assoc_status_code = data->assoc_reject.status_code;wpa_s->assoc_timed_out = data->assoc_reject.timed_out;wpas_notify_assoc_status_code(wpa_s);
int wpa_supplicant_connect(struct wpa_supplicant *wpa_s,struct wpa_bss *selected,struct wpa_ssid *ssid)
{wpa_msg(wpa_s, MSG_DEBUG,"Considering connect request: reassociate: %d selected: "MACSTR " bssid: " MACSTR " pending: " MACSTR" wpa_state: %s ssid=%p current_ssid=%p",wpa_s->reassociate, MAC2STR(selected->bssid),MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),wpa_supplicant_state_txt(wpa_s->wpa_state),ssid, wpa_s->current_ssid);if (wpa_s->reassociate ||(os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&((wpa_s->wpa_state != WPA_ASSOCIATING &&wpa_s->wpa_state != WPA_AUTHENTICATING) ||(!is_zero_ether_addr(wpa_s->pending_bssid) &&os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) !=0) ||(is_zero_ether_addr(wpa_s->pending_bssid) &&ssid != wpa_s->current_ssid)))) {if (wpa_supplicant_scard_init(wpa_s, ssid)) {wpa_supplicant_req_new_scan(wpa_s, 10, 0);return 0;}wpa_msg(wpa_s, MSG_DEBUG, "Request association with " MACSTR,MAC2STR(selected->bssid));wpa_supplicant_associate(wpa_s, selected, ssid);} else {wpa_dbg(wpa_s, MSG_DEBUG, "Already associated or trying to ""connect with the selected AP");}return 0;
}
void wpa_supplicant_associate(struct wpa_supplicant *wpa_s,
struct wpa_bss *bss, struct wpa_ssid *ssid)
{struct wpa_connect_work *cwork;int rand_style;cwork->bss = bss;cwork->ssid = ssid;if (radio_add_work(wpa_s, bss ? bss->freq : 0, "connect", 1,wpas_start_assoc_cb, cwork) < 0) {os_free(cwork);}
}
static void wpas_start_assoc_cb(struct wpa_radio_work *work, int deinit)if (wpa_s->reassoc_same_ess && !is_zero_ether_addr(prev_bssid) &&wpa_s->current_ssid)params.prev_bssid = prev_bssid;ret = wpa_drv_associate(wpa_s, ¶ms);os_free(wpa_ie);if (ret < 0) {wpa_msg(wpa_s, MSG_INFO, "Association request to the driver ""failed");if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SANE_ERROR_CODES) {/** The driver is known to mean what is saying, so we* can stop right here; the association will not* succeed.*/wpas_connection_failed(wpa_s, wpa_s->pending_bssid);wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);return;}/* try to continue anyway; new association will be tried again* after timeout */assoc_failed = 1;}case EVENT_ASSOC_REJECT:if (data->assoc_reject.bssid)wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT"bssid=" MACSTR " status_code=%u%s%s%s",MAC2STR(data->assoc_reject.bssid),data->assoc_reject.status_code,data->assoc_reject.timed_out ? " timeout" : "",data->assoc_reject.timeout_reason ? "=" : "",data->assoc_reject.timeout_reason ?data->assoc_reject.timeout_reason : "");elsewpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT"status_code=%u%s%s%s",data->assoc_reject.status_code,data->assoc_reject.timed_out ? " timeout" : "",data->assoc_reject.timeout_reason ? "=" : "",data->assoc_reject.timeout_reason ?data->assoc_reject.timeout_reason : "");wpa_s->assoc_status_code = data->assoc_reject.status_code;wpa_s->assoc_timed_out = data->assoc_reject.timed_out;wpas_notify_assoc_status_code(wpa_s);
/external/wpa_supplicant_8/wpa_supplicant/wpa_supplicant.c
void wpas_connection_failed(struct wpa_supplicant *wpa_s, const u8 *bssid)
{int timeout;int count;int *freqs = NULL;wpas_connect_work_done(wpa_s);eloop_cancel_timeout(wpa_supplicant_timeout, wpa_s, NULL);if (wpa_s->own_disconnect_req) {wpa_s->own_disconnect_req = 0;wpa_dbg(wpa_s, MSG_DEBUG,"Ignore connection failure due to local request to disconnect");return;}if (wpa_s->disconnected) {wpa_dbg(wpa_s, MSG_DEBUG, "Ignore connection failure ""indication since interface has been put into ""disconnected state");return;}count = wpa_blacklist_add(wpa_s, bssid);if (count == 1 && wpa_s->current_bss) {freqs = get_bss_freqs_in_ess(wpa_s);if (freqs) {wpa_dbg(wpa_s, MSG_DEBUG, "Another BSS in this ESS ""has been seen; try it next");wpa_blacklist_add(wpa_s, bssid);os_free(wpa_s->next_scan_freqs);wpa_s->next_scan_freqs = freqs;}}count += wpa_s->extra_blacklist_count;if (count > 3 && wpa_s->current_ssid) {wpa_printf(MSG_DEBUG, "Continuous association failures - ""consider temporary network disabling");wpas_auth_failed(wpa_s, "CONN_FAILED");}switch (count) {case 1:timeout = 100;break;case 2:timeout = 500;break;case 3:timeout = 1000;break;case 4:timeout = 5000;break;default:timeout = 10000;break;}wpa_dbg(wpa_s, MSG_DEBUG, "Blacklist count %d --> request scan in %d ""ms", count, timeout);/** TODO: if more than one possible AP is available in scan results,* could try the other ones before requesting a new scan.*/wpa_supplicant_req_scan(wpa_s, timeout / 1000,1000 * (timeout % 1000));
}
加入黑名单代码：
/external/wpa_supplicant_8/wpa_supplicant/blacklist.c
int wpa_blacklist_add(struct wpa_supplicant *wpa_s, const u8 *bssid)
{struct wpa_blacklist *e;if (wpa_s == NULL || bssid == NULL)return -1;e = wpa_blacklist_get(wpa_s, bssid);if (e) {e->count++;wpa_printf(MSG_DEBUG, "BSSID " MACSTR " blacklist count ""incremented to %d",MAC2STR(bssid), e->count);return e->count;}e = os_zalloc(sizeof(*e));if (e == NULL)return -1;os_memcpy(e->bssid, bssid, ETH_ALEN);e->count = 1;e->next = wpa_s->blacklist;wpa_s->blacklist = e;wpa_printf(MSG_DEBUG, "Added BSSID " MACSTR " into blacklist",MAC2STR(bssid));return e->count;
}
其中有一个数字计数器，它在每次尝试重新连接时递增。
04-20 16:07:59.607 1334 1750 V WifiConfigManager: Disable counter for network FWDVT-WPA2 for reason NETWORK_SELECTION_DISABLED_ASSOCIATION_REJECTION is 1 and threshold is 504-20 16:08:05.524 1334 1750 V WifiConfigManager: Disable counter for network FWDVT-WPA2 for reason NETWORK_SELECTION_DISABLED_ASSOCIATION_REJECTION is 2 and threshold is 504-20 16:08:17.640 1334 1750 V WifiConfigManager: Disable counter for network FWDVT-WPA2 for reason NETWORK_SELECTION_DISABLED_ASSOCIATION_REJECTION is 3 and threshold is 504-20 16:08:32.557 1334 1750 V WifiConfigManager: Disable counter for network FWDVT-WPA2 for reason NETWORK_SELECTION_DISABLED_ASSOCIATION_REJECTION is 4 and threshold is 504-20 16:10:12.561 1334 1750 V WifiConfigManager: Disable counter for network FWDVT-WPA2 for reason NETWORK_SELECTION_DISABLED_ASSOCIATION_REJECTION is 1 and threshold is 504-20 16:10:25.218 1334 1750 V WifiConfigManager: Disable counter for network FWDVT-WPA2 for reason NETWORK_SELECTION_DISABLED_ASSOCIATION_REJECTION is 2 and threshold is 504-20 16:10:38.021 1334 1750 V WifiConfigManager: Disable counter for network FWDVT-WPA2 for reason NETWORK_SELECTION_DISABLED_ASSOCIATION_REJECTION is 3 and threshold is 504-20 16:11:03.240 1334 1750 V WifiConfigManager: Disable counter for network FWDVT-WPA2 for reason NETWORK_SELECTION_DISABLED_ASSOCIATION_REJECTION is 4 and threshold is 5
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