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android / platform / system / wlan / ti / 9b213f53c0858384d639ce002fec21f3f82a2ca1 / . / sta_dk_4_0_4_32 / common / src / Management / apConn / apConn.c
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/** \file apConn.c
* \brief AP Connection
*
* \see apConn.h
*/
/****************************************************************************
* *
* MODULE: AP Connection *
* PURPOSE: *
* Roaming ability of eSTA is implemented by Roaming Manager Component and
* described in "Roaming Manager module LLD" document, and by
* AP Connection module. AP Connection module implemented as two sub-modules:
* The major one is AP Connection, that is responsible for:
* - providing Roaming Manager with access to other parts of WLAN Driver,
* - implementing low levels of roaming mechanism.
* Current BSS sub-module takes care of:
* - maintaining database of current AP info,
* - providing access to database of current AP info.
* *
****************************************************************************/
#include "osApi.h"
#include "paramIn.h"
#include "report.h"
#include "utils.h"
#include "smeSmApi.h"
#include "siteMgrApi.h"
#include "smeApi.h"
#include "PowerMgr_API.h"
#include "TrafficMonitorAPI.h"
#include "RateAdaptation.h"
#include "qosMngr_API.h"
#ifdef EXC_MODULE_INCLUDED
#include "excMngr.h"
#endif
#include "measurementMgrApi.h"
#include "connApi.h"
#include "EvHandler.h"
#include "apConn.h"
#include "currBss.h"
#include "Ctrl.h"
#include "fsm.h"
#include "scrApi.h"
#include "regulatoryDomainApi.h"
/* Constants and macros */
#ifdef TI_DBG
#define AP_CONN_VALIDATE_HANDLE(hAPConnection) \
if (hAPConnection == NULL) \
{ \
WLAN_OS_REPORT(("FATAL ERROR: AP Connection context is not initiated\n")); \
return NOK; \
}
#else
#define AP_CONN_VALIDATE_HANDLE(hAPConnection)
#endif
#define MAX_ROAMING_TRIGGERS ROAMING_TRIGGER_LAST
#define UPDATE_SEND_DEAUTH_PACKET_FLAG(roamingEventType) \
if ((roamingEventType >= ROAMING_TRIGGER_MAX_TX_RETRIES) && \
(roamingEventType != ROAMING_TRIGGER_SECURITY_ATTACK)) \
{ \
pAPConnection->sendDeauthPacket = FALSE; \
}
/* Init bits */
/* Enumerations */
/**
* AP Connection state machine states
*/
typedef enum
{
AP_CONNECT_STATE_IDLE = 0, /**< Initial state */
AP_CONNECT_STATE_WAIT_ROAM, /**< Connected to AP, waiting for start roaming command */
AP_CONNECT_STATE_SWITCHING_CHANNEL, /**< Connected to AP, switch channel in progress */
AP_CONNECT_STATE_WAIT_CONNECT_CMD, /**< SCR allocated, PS mode entered; wait for cmd from Roam Mngr */
AP_CONNECT_STATE_PREPARE_HAND_OFF, /**< Request CCKM for new AP, wait for response */
AP_CONNECT_STATE_CONNECTING, /**< Performing Connection to new AP; wait for response from Conn SM */
AP_CONNECT_STATE_DISCONNECTING, /**< Wait for completion of current link disconnection */
AP_CONNECT_STATE_REESTABLISH_VOICE, /**< Wait for completion of voice TSPEC re-negotiation */
AP_CONNECT_STATE_LAST
} apConn_smStates;
/**
* AP Connection state machine events
*/
typedef enum
{
AP_CONNECT_EVENT_PREPARE_FOR_ROAMING= 0,/**< Sent by Roam MNGR when roaming event occurs */
AP_CONNECT_EVENT_FINISHED_OK, /**< Indicates successful completion of request sent to Conn SM */
AP_CONNECT_EVENT_FINISHED_NOT_OK, /**< Indicates unsuccessful completion of request sent to Conn SM */
AP_CONNECT_EVENT_RETAIN_CURRENT_AP, /**< Sent by Roam MNGR when it wishes to give-up roaming */
AP_CONNECT_EVENT_START, /**< Sent by SME when first time link to AP is established */
AP_CONNECT_EVENT_START_ROAM, /**< Sent by Roam MNGR when it wishes to roam to new AP */
AP_CONNECT_EVENT_START_SWITCH_CHANNEL, /**< Sent by Switch channel module when starting switch channel process (tx enabled) */
AP_CONNECT_EVENT_FINISHED_SWITCH_CH, /**< Sent by Switch channel module when finishing switch channel process (tx enabled) */
AP_CONNECT_EVENT_FINISHED_HAND_OVER, /**< Sent by EXC module when finishing hand-over */
AP_CONNECT_EVENT_STOP, /**< Disconnect current link, send stop indication to other modules */
AP_CONNECT_EVENT_LAST
} apConn_smEvents;
#define AP_CONNECT_NUM_STATES AP_CONNECT_STATE_LAST
#define AP_CONNECT_NUM_EVENTS AP_CONNECT_EVENT_LAST
#ifdef REPORT_LOG
/* Global variables */
static char *apConn_stateDesc[AP_CONNECT_NUM_STATES] = {
"APC_STATE_IDLE",
"APC_STATE_WAIT_ROAM",
"APC_STATE_SWITCHING_CHANNEL",
"APC_STATE_WAIT_CONNECT_CMD",
"APC_STATE_PREPARE_HAND_OFF",
"APC_STATE_CONNECTING",
"APC_STATE_DISCONNECTING",
"APC_STATE_REESTABLISH_VOICE"
};
static char *apConn_eventDesc[AP_CONNECT_NUM_EVENTS] = {
"APC_EVENT_PREPARE_FOR_ROAMING",
"APC_EVENT_FINISHED_OK",
"APC_EVENT_FINISHED_NOT_OK",
"APC_EVENT_RETAIN_CURRENT_AP",
"APC_EVENT_START",
"APC_EVENT_START_ROAM",
"APC_EVENT_START_SWITCH_CHANNEL",
"APC_EVENT_FINISHED_SWITCH_CHANNEL",
"APC_EVENT_FINISHED_HAND_OVER",
"APC_EVENT_STOP"
};
#endif
/* Typedefs */
/* Structures */
/**
* AP Connection control block
* Following structure defines parameters that can be configured externally,
* internal variables, AP Connection state machine and handlers of other modules
* used by AP Connection module
*/
typedef struct _apConn_t
{
/* AP Connection state machine */
fsm_stateMachine_t *apConnSM; /**< AP Connection module state machine */
apConn_smStates currentState; /**< AP Connection state machine current state */
/* Internal parameters */
BOOL firstAttempt2Roam; /**< TRUE if still connected to original AP, FALSE otherwise */
BOOL roamingEnabled; /**< If FALSE, act like if no roaming callback registered. */
apConn_roamingTrigger_e roamReason; /**< The most severe and recent reason for roaming */
APDisconnect_t APDisconnect; /**< The AP disconnect trigger extra information */
bssEntry_t *newAP; /**< Stores parameters of roaming candidate */
apConn_connRequest_e requestType; /**< Stores type of roaming request */
INT8 rssiThreshold; /**< Stores recently configured RSSI threshold */
UINT8 snrThreshold; /**< Stores recently configured SNR threshold */
UINT8 txFailureThreshold; /**< Stores recently configured consec. no ack threshold */
UINT8 lowRateThreshold; /**< Stores recently configured consec. no ack threshold */
UINT32 vsIElength; /**< Length of vendor specific info-element for assoc req (if defined) */
char *vsIEbuf; /**< Pointer to vendor specific info-element for assoc req (if defined) */
BOOL isRssiTriggerMaskedOut;
BOOL isSnrTriggerMaskedOut;
BOOL isConsTxFailureMaskedOut;
BOOL islowRateTriggerMaskedOut;
BOOL removeKeys; /**< Indicates whether keys should be removed after disconnect or not */
BOOL ignoreDeauthReason0;/**< Indicates whether to ignore DeAuth with reason 0, required for Rogue AP test EXC-V2 */
BOOL sendDeauthPacket; /**< Indicates whether to send DEAUTH packet when discommecting or not */
BOOL voiceTspecConfigured;/**< Shall be set to TRUE before roaming in case the TSPEC is configured */
BOOL videoTspecConfigured;/**< Shall be set to TRUE before roaming in case the TSPEC is configured */
BOOL reNegotiateTSPEC; /**< Shall be set to TRUE before hand-over if requested by Roaming Manager */
BOOL resetReportedRoamingStatistics; /**< Shall be set to TRUE if starting to measure traffic */
UINT16 lastRoamingDelay;
UINT32 roamingStartedTimestamp;
UINT8 roamingSuccesfulHandoverNum;
BOOL bNonRoamingDisAssocReason; /**< Indicate whether last disconnection was called from outside (SME) */
/** Callback functions, registered by Roaming manager */
apConn_roamMngrCallb_t roamEventCallb; /**< roam event triggers */
apConn_roamMngrCallb_t reportStatusCallb; /**< connection status events */
apConn_roamMngrCallb_t returnNeighborApsCallb; /**< neighbor APs list update */
/* Handlers of other modules used by AP Connection */
TI_HANDLE hOs;
TI_HANDLE hReport;
TI_HANDLE hCurrBSS;
TI_HANDLE hRoamMng;
TI_HANDLE hSme;
TI_HANDLE hSiteMgr;
TI_HANDLE hExcMngr;
TI_HANDLE hConnSm;
TI_HANDLE hPrivacy;
TI_HANDLE hQos;
TI_HANDLE hRateAdapt;
TI_HANDLE hEvHandler;
TI_HANDLE hScr;
TI_HANDLE hAssoc;
TI_HANDLE hRegulatoryDomain;
/* Counters for statistics */
UINT32 roamingTriggerEvents[MAX_ROAMING_TRIGGERS];
UINT32 roamingSuccesfulHandoverTotalNum;
UINT32 roamingFailedHandoverNum;
UINT32 retainCurrAPNum;
UINT32 disconnectFromRoamMngrNum;
UINT32 stopFromSmeNum;
} apConn_t;
/* Internal functions prototypes */
/* SM functions */
static TI_STATUS apConn_smEvent(apConn_smStates *currState, UINT8 event, void* data);
static TI_STATUS apConn_smNop(void *pData);
static TI_STATUS apConn_smUnexpected(void *pData);
static TI_STATUS apConn_startWaitingForTriggers(void *pData);
static TI_STATUS apConn_connectedToNewAP(void *pData);
static TI_STATUS apConn_configureDriverBeforeRoaming(void *pData);
static TI_STATUS apConn_stopConnection(void *pData);
static TI_STATUS apConn_invokeConnectionToNewAp(void *pData);
static TI_STATUS apConn_reportDisconnected(void *pData);
static TI_STATUS apConn_retainAP(void *pData);
static TI_STATUS apConn_requestCCKM(void *pData);
static TI_STATUS apConn_reportConnFail(void *pData);
static TI_STATUS apConn_swChFinished(void *pData);
static TI_STATUS apConn_handleTspecReneg (void *pData);
/* other functions */
#ifdef EXC_MODULE_INCLUDED
static void apConn_calcNewTsf(apConn_t *hAPConnection, UINT8 *tsfTimeStamp, UINT32 newSiteOsTimeStamp, UINT32 beaconInterval);
#endif
static TI_STATUS apConn_qosMngrReportResultCallb (TI_HANDLE hApConn, trafficAdmRequestStatus_e result);
static void apConn_reportConnStatusToSME (apConn_t *pAPConnection);
/* Public functions implementation */
/**
*
* apConn_create
*
* \b Description:
*
* Create the AP Connection context:
* allocate memory for internal variables;
* create state machine.
*
* \b ARGS:
*
* I - hOs - OS handler
*
* \b RETURNS:
*
* Pointer to the AP Connection on success, NULL on failure
* (unable to allocate memory or other error).
*
* \sa
*/
TI_HANDLE apConn_create(TI_HANDLE hOs)
{
TI_STATUS status;
apConn_t *pAPConnection;
if ((pAPConnection = os_memoryAlloc(hOs, sizeof(apConn_t))) != NULL)
{
pAPConnection->hOs = hOs;
status = fsm_Create(hOs, &(pAPConnection->apConnSM), AP_CONNECT_NUM_STATES, AP_CONNECT_NUM_EVENTS);
if (status == OK)
{
/* Succeeded to create AP Connection module context - return pointer to it */
return pAPConnection;
}
else /* Failed to create state machine */
{
WLAN_OS_REPORT(("FATAL ERROR: apConn_create(): Error creating apConnSM - aborting\n"));
/* Free pre-allocated control block */
utils_nullMemoryFree(hOs, pAPConnection, sizeof(apConn_t));
return NULL;
}
}
else /* Failed to allocate control block */
{
WLAN_OS_REPORT(("FATAL ERROR: apConn_create(): Error allocating cb - aborting\n"));
return NULL;
}
}
/**
*
* apConn_unload
*
* \b Description:
*
* Finish AP Connection module work:
* release the allocation for state machine and internal variables.
*
* \b ARGS:
*
*
* \b RETURNS:
*
* OK if successful, NOK otherwise.
*
* \sa
*/
TI_STATUS apConn_unload(TI_HANDLE hAPConnection)
{
apConn_t *pAPConnection;
AP_CONN_VALIDATE_HANDLE(hAPConnection);
pAPConnection = (apConn_t *)hAPConnection;
/* Unload state machine */
fsm_Unload(pAPConnection->hOs, pAPConnection->apConnSM);
/* Free pre-allocated control block */
utils_nullMemoryFree(pAPConnection->hOs, pAPConnection, sizeof(apConn_t));
return OK;
}
/**
*
* apConn_config
*
* \b Description:
*
* Prepare AP Connection module to work: initiate internal variables, start state machine
*
* \b ARGS:
*
* I - hCurrAP - Current BSS handle \n
* I - hRoamMng - Roaming Manager handle \n
* I - hSme - SME context \n
* I - hPowerMgr - Power Manager context \n
*
* \b RETURNS:
*
* OK on success, NOK on failure.
*
* \sa
*/
TI_STATUS apConn_config(TI_HANDLE hAPConnection,
TI_HANDLE hReport,
TI_HANDLE hCurrAP,
TI_HANDLE hRoamMng,
TI_HANDLE hSme,
TI_HANDLE hSiteMgr,
TI_HANDLE hExcMngr,
TI_HANDLE hConnSm,
TI_HANDLE hPrivacy,
TI_HANDLE hQos,
TI_HANDLE hCtrl,
TI_HANDLE hEvHandler,
TI_HANDLE hScr,
TI_HANDLE hAssoc,
TI_HANDLE hRegulatoryDomain,
apConnParams_t *pApConnParams)
{
apConn_t *pAPConnection = (apConn_t *)hAPConnection;
TI_STATUS status;
UINT32 index;
/** State Machine matrix */
fsm_actionCell_t apConn_matrix[AP_CONNECT_NUM_STATES][AP_CONNECT_NUM_EVENTS] =
{
/* next state and actions for IDLE state */
{ {AP_CONNECT_STATE_IDLE, apConn_smUnexpected}, /* PREPARE_FOR_ROAMING */
{AP_CONNECT_STATE_IDLE, apConn_smUnexpected}, /* FINISHED_OK */
{AP_CONNECT_STATE_IDLE, apConn_smUnexpected}, /* FINISHED_NOT_OK */
{AP_CONNECT_STATE_IDLE, apConn_smUnexpected}, /* RETAIN_CURRENT_AP */
{AP_CONNECT_STATE_WAIT_ROAM,apConn_startWaitingForTriggers},/* START */
{AP_CONNECT_STATE_IDLE, apConn_smUnexpected}, /* START_ROAM */
{AP_CONNECT_STATE_IDLE, apConn_smUnexpected}, /* START_SWITCH_CHANNEL */
{AP_CONNECT_STATE_IDLE, apConn_smNop}, /* FINISHED_SWITCH_CH */
{AP_CONNECT_STATE_IDLE, apConn_smNop}, /* FINISHED_HAND_OVER */
{AP_CONNECT_STATE_IDLE, apConn_smUnexpected} /* STOP */
},
/* next state and actions for WAIT_ROAM state */
{ {AP_CONNECT_STATE_WAIT_CONNECT_CMD,apConn_configureDriverBeforeRoaming},/* PREPARE_FOR_ROAMING */
{AP_CONNECT_STATE_WAIT_ROAM, apConn_smUnexpected}, /* FINISHED_OK */
{AP_CONNECT_STATE_WAIT_ROAM, apConn_smUnexpected}, /* FINISHED_NOT_OK */
{AP_CONNECT_STATE_WAIT_ROAM, apConn_smUnexpected}, /* RETAIN_CURRENT_AP */
{AP_CONNECT_STATE_WAIT_ROAM, apConn_smUnexpected}, /* START */
{AP_CONNECT_STATE_WAIT_ROAM, apConn_smUnexpected}, /* START_ROAM */
{AP_CONNECT_STATE_SWITCHING_CHANNEL, apConn_smNop}, /* START_SWITCH_CHANNEL */
{AP_CONNECT_STATE_WAIT_ROAM, apConn_smUnexpected}, /* FINISHED_SWITCH_CH */
{AP_CONNECT_STATE_WAIT_ROAM, apConn_smUnexpected}, /* FINISHED_HAND_OVER */
{AP_CONNECT_STATE_DISCONNECTING, apConn_stopConnection} /* STOP */
},
/* next state and actions for SWITCHING_CHANNEL state */
{ {AP_CONNECT_STATE_SWITCHING_CHANNEL, apConn_smUnexpected}, /* PREPARE_FOR_ROAMING */
{AP_CONNECT_STATE_SWITCHING_CHANNEL, apConn_smUnexpected}, /* FINISHED_OK */
{AP_CONNECT_STATE_SWITCHING_CHANNEL, apConn_smUnexpected}, /* FINISHED_NOT_OK */
{AP_CONNECT_STATE_SWITCHING_CHANNEL, apConn_smUnexpected}, /* RETAIN_CURRENT_AP */
{AP_CONNECT_STATE_SWITCHING_CHANNEL, apConn_smUnexpected}, /* START */
{AP_CONNECT_STATE_SWITCHING_CHANNEL, apConn_smUnexpected}, /* START_ROAM */
{AP_CONNECT_STATE_SWITCHING_CHANNEL, apConn_swChFinished}, /* START_SWITCH_CHANNEL */
{AP_CONNECT_STATE_WAIT_ROAM, apConn_smNop}, /* FINISHED_SWITCH_CH */
{AP_CONNECT_STATE_SWITCHING_CHANNEL, apConn_smUnexpected}, /* FINISHED_HAND_OVER */
{AP_CONNECT_STATE_DISCONNECTING, apConn_stopConnection} /* STOP */
},
/* next state and actions for WAIT_CONNECT_CMD state */
{ {AP_CONNECT_STATE_WAIT_CONNECT_CMD, apConn_smUnexpected}, /* PREPARE_FOR_ROAMING */
{AP_CONNECT_STATE_WAIT_CONNECT_CMD, apConn_smUnexpected}, /* FINISHED_OK */
{AP_CONNECT_STATE_WAIT_CONNECT_CMD, apConn_smUnexpected}, /* FINISHED_NOT_OK */
{AP_CONNECT_STATE_WAIT_ROAM, apConn_retainAP}, /* RETAIN_CURRENT_AP */
{AP_CONNECT_STATE_WAIT_CONNECT_CMD, apConn_smUnexpected}, /* START */
{AP_CONNECT_STATE_PREPARE_HAND_OFF, apConn_requestCCKM}, /* START_ROAM */
{AP_CONNECT_STATE_WAIT_CONNECT_CMD, apConn_smUnexpected}, /* START_SWITCH_CHANNEL */
{AP_CONNECT_STATE_WAIT_CONNECT_CMD, apConn_smUnexpected}, /* FINISHED_SWITCH_CH */
{AP_CONNECT_STATE_WAIT_CONNECT_CMD, apConn_smUnexpected}, /* FINISHED_HAND_OVER */
{AP_CONNECT_STATE_DISCONNECTING, apConn_stopConnection} /* STOP */
},
/* next state and actions for PREPARE_HAND_OFF state */
{ {AP_CONNECT_STATE_PREPARE_HAND_OFF, apConn_smUnexpected}, /* PREPARE_FOR_ROAMING */
{AP_CONNECT_STATE_PREPARE_HAND_OFF, apConn_smUnexpected}, /* FINISHED_OK */
{AP_CONNECT_STATE_PREPARE_HAND_OFF, apConn_smUnexpected}, /* FINISHED_NOT_OK */
{AP_CONNECT_STATE_PREPARE_HAND_OFF, apConn_smUnexpected}, /* RETAIN_CURRENT_AP */
{AP_CONNECT_STATE_PREPARE_HAND_OFF, apConn_smUnexpected}, /* START */
{AP_CONNECT_STATE_PREPARE_HAND_OFF, apConn_smUnexpected}, /* START_ROAM */
{AP_CONNECT_STATE_PREPARE_HAND_OFF, apConn_smUnexpected}, /* START_SWITCH_CHANNEL */
{AP_CONNECT_STATE_PREPARE_HAND_OFF, apConn_smUnexpected}, /* FINISHED_SWITCH_CH */
{AP_CONNECT_STATE_CONNECTING, apConn_invokeConnectionToNewAp},/* FINISHED_HAND_OVER */
{AP_CONNECT_STATE_DISCONNECTING, apConn_stopConnection} /* STOP */
},
/* next state and actions for CONNECTING state */
{ {AP_CONNECT_STATE_CONNECTING, apConn_smUnexpected}, /* PREPARE_FOR_ROAMING */
{AP_CONNECT_STATE_REESTABLISH_VOICE,apConn_handleTspecReneg},/* FINISHED_OK */
{AP_CONNECT_STATE_WAIT_CONNECT_CMD, apConn_reportConnFail}, /* FINISHED_NOT_OK */
{AP_CONNECT_STATE_CONNECTING, apConn_smUnexpected}, /* RETAIN_CURRENT_AP */
{AP_CONNECT_STATE_CONNECTING, apConn_smUnexpected}, /* START */
{AP_CONNECT_STATE_CONNECTING, apConn_smUnexpected}, /* START_ROAM */
{AP_CONNECT_STATE_CONNECTING, apConn_smUnexpected}, /* START_SWITCH_CHANNEL */
{AP_CONNECT_STATE_CONNECTING, apConn_smUnexpected}, /* FINISHED_SWITCH_CH */
{AP_CONNECT_STATE_CONNECTING, apConn_smUnexpected}, /* FINISHED_HAND_OVER */
{AP_CONNECT_STATE_DISCONNECTING, apConn_stopConnection} /* STOP */
},
/* next state and actions for DISCONNECTING state */
{ {AP_CONNECT_STATE_DISCONNECTING, apConn_smNop}, /* PREPARE_FOR_ROAMING */
{AP_CONNECT_STATE_IDLE, apConn_reportDisconnected}, /* FINISHED_OK */
{AP_CONNECT_STATE_IDLE, apConn_reportDisconnected}, /* FINISHED_NOT_OK */
{AP_CONNECT_STATE_DISCONNECTING, apConn_smNop}, /* RETAIN_CURRENT_AP */
{AP_CONNECT_STATE_DISCONNECTING, apConn_smUnexpected}, /* START */
{AP_CONNECT_STATE_DISCONNECTING, apConn_smNop}, /* START_ROAM */
{AP_CONNECT_STATE_DISCONNECTING, apConn_smNop}, /* START_SWITCH_CHANNEL */
{AP_CONNECT_STATE_DISCONNECTING, apConn_smNop}, /* FINISHED_SWITCH_CH */
{AP_CONNECT_STATE_DISCONNECTING, apConn_smNop}, /* FINISHED_HAND_OVER */
{AP_CONNECT_STATE_DISCONNECTING, apConn_smNop}, /* STOP */
},
/* next state and actions for REESTABLISH_VOICE state */
{ {AP_CONNECT_STATE_REESTABLISH_VOICE, apConn_smUnexpected}, /* PREPARE_FOR_ROAMING */
{AP_CONNECT_STATE_WAIT_ROAM,apConn_connectedToNewAP}, /* FINISHED_OK */
{AP_CONNECT_STATE_WAIT_CONNECT_CMD, apConn_reportConnFail}, /* FINISHED_NOT_OK */
{AP_CONNECT_STATE_REESTABLISH_VOICE, apConn_smUnexpected}, /* RETAIN_CURRENT_AP */
{AP_CONNECT_STATE_REESTABLISH_VOICE, apConn_smUnexpected}, /* START */
{AP_CONNECT_STATE_REESTABLISH_VOICE, apConn_smUnexpected}, /* START_ROAM */
{AP_CONNECT_STATE_REESTABLISH_VOICE, apConn_smUnexpected}, /* START_SWITCH_CHANNEL */
{AP_CONNECT_STATE_REESTABLISH_VOICE, apConn_smUnexpected}, /* FINISHED_SWITCH_CH */
{AP_CONNECT_STATE_REESTABLISH_VOICE, apConn_smUnexpected}, /* FINISHED_HAND_OVER */
{AP_CONNECT_STATE_DISCONNECTING, apConn_stopConnection} /* STOP */
}
};
AP_CONN_VALIDATE_HANDLE(hAPConnection);
status = fsm_Config(pAPConnection->apConnSM,
(fsm_Matrix_t)&apConn_matrix[0][0],
AP_CONNECT_NUM_STATES,
AP_CONNECT_NUM_EVENTS,
(fsm_eventActivation_t)apConn_smEvent,
pAPConnection->hOs);
if (status == OK)
{
pAPConnection->currentState = AP_CONNECT_STATE_IDLE;
pAPConnection->firstAttempt2Roam = TRUE;
pAPConnection->hReport = hReport;
pAPConnection->hCurrBSS = hCurrAP;
pAPConnection->hRoamMng = hRoamMng;
pAPConnection->hSme = hSme;
pAPConnection->hSiteMgr = hSiteMgr;
pAPConnection->hExcMngr = hExcMngr;
pAPConnection->hConnSm = hConnSm;
pAPConnection->hPrivacy = hPrivacy;
pAPConnection->hQos = hQos;
pAPConnection->hRateAdapt = ((ctrlData_t *)hCtrl)->pRateAdaptation;
pAPConnection->hEvHandler = hEvHandler;
pAPConnection->hScr = hScr;
pAPConnection->hAssoc = hAssoc;
pAPConnection->hRegulatoryDomain = hRegulatoryDomain;
pAPConnection->roamingEnabled = TRUE;
pAPConnection->reportStatusCallb = NULL;
pAPConnection->roamEventCallb = NULL;
pAPConnection->returnNeighborApsCallb = NULL;
pAPConnection->ignoreDeauthReason0 = pApConnParams->ignoreDeauthReason0;
for (index=ROAMING_TRIGGER_NONE; index<ROAMING_TRIGGER_LAST; index++)
{
pAPConnection->roamingTriggerEvents[index] = 0;
}
pAPConnection->roamingSuccesfulHandoverNum = 0;
pAPConnection->roamingSuccesfulHandoverTotalNum = 0;
pAPConnection->roamingFailedHandoverNum = 0;
pAPConnection->retainCurrAPNum = 0;
pAPConnection->disconnectFromRoamMngrNum = 0;
pAPConnection->stopFromSmeNum = 0;
pAPConnection->txFailureThreshold = NO_ACK_DEFAULT_THRESHOLD;
pAPConnection->lowRateThreshold = LOW_RATE_DEFAULT_THRESHOLD;
pAPConnection->rssiThreshold = RSSI_DEFAULT_THRESHOLD;
pAPConnection->snrThreshold = SNR_DEFAULT_THRESHOLD;
pAPConnection->vsIElength = 0;
pAPConnection->isRssiTriggerMaskedOut = FALSE;
pAPConnection->isSnrTriggerMaskedOut = TRUE;
pAPConnection->islowRateTriggerMaskedOut = FALSE;
pAPConnection->isConsTxFailureMaskedOut = FALSE;
pAPConnection->removeKeys = TRUE;
pAPConnection->sendDeauthPacket = TRUE; /* Default behavior is radio On - send DISASSOC frame */
pAPConnection->voiceTspecConfigured = FALSE;
pAPConnection->videoTspecConfigured = FALSE;
pAPConnection->resetReportedRoamingStatistics = FALSE;
pAPConnection->reNegotiateTSPEC = FALSE;
pAPConnection->bNonRoamingDisAssocReason = FALSE;
pAPConnection->roamingStartedTimestamp = 0;
pAPConnection->lastRoamingDelay = 0;
pAPConnection->roamingSuccesfulHandoverNum = 0;
return OK;
}
else/* Unable to configure State Machine */
{
WLAN_REPORT_ERROR(pAPConnection->hReport, ROAMING_MANAGER_MODULE_LOG, ("FATAL ERROR: apConn_config(): Failed to configure sm\n"));
return status;
}
}
/**
*
* apConn_isPsRequiredBeforeScan
*
* \b Description:
*
* verify if the PS required before scan according if roaming triger is part of ROAMING_TRIGGER_LOW_QUALITY_GROUP
*
* \b ARGS:
*
* I - hAPConnection - pointer to module\n
*
* \b RETURNS:
*
* TRUE or FALSE.
*
* \sa
*/
BOOLEAN apConn_isPsRequiredBeforeScan(TI_HANDLE hAPConnection)
{
apConn_t * pAPConnection = (apConn_t *) hAPConnection;
/* check if part of ROAMING_TRIGGER_LOW_QUALITY_GROUP */
if (pAPConnection->roamReason <= ROAMING_TRIGGER_MAX_TX_RETRIES)
return TRUE;
else
return FALSE;
}
/**
*
* apConn_ConnCompleteInd
*
* \b Description:
*
* Inform AP Connection about successful / unsuccessful completion
* of link establishing
*
* \b ARGS:
*
* I - result - OK if successfully connected, NOK otherwise \n
*
* \b RETURNS:
*
* OK if successful, NOK otherwise.
*
* \sa
*/
TI_STATUS apConn_ConnCompleteInd(TI_HANDLE hAPConnection, mgmtStatus_e status, UINT32 uStatusCode)
{
apConn_t *pAPConnection = (apConn_t *)hAPConnection;
AP_CONN_VALIDATE_HANDLE(hAPConnection);
if (status == STATUS_SUCCESSFUL)
{
apConn_smEvent(&(pAPConnection->currentState), AP_CONNECT_EVENT_FINISHED_OK, pAPConnection);
}
else
{
apConn_smEvent(&(pAPConnection->currentState), AP_CONNECT_EVENT_FINISHED_NOT_OK, pAPConnection);
}
return OK;
}
/**
*
* apConn_getRoamThresholds
*
* \b Description:
*
* Used to query for the current roaming thresholds configuration
*
* \b ARGS:
*
* I - hAPConnection - pointer to module\n
* O - pParam - pointer to buffer to store the thresholds\n
*
* \b RETURNS:
*
* OK if successful, NOK otherwise.
*
* \sa
*/
TI_STATUS apConn_getRoamThresholds(TI_HANDLE hAPConnection, roamingMngrThresholdsConfig_t *pParam)
{
apConn_t * pAPConnection = (apConn_t *) hAPConnection;
pParam->lowRssiThreshold = pAPConnection->rssiThreshold;
pParam->lowSnrThreshold = pAPConnection->snrThreshold;
pParam->txRateThreshold = pAPConnection->lowRateThreshold;
pParam->dataRetryThreshold = pAPConnection->txFailureThreshold;
currBSS_getRoamingParams(pAPConnection->hCurrBSS,
&pParam->numExpectedTbttForBSSLoss,
&pParam->lowQualityForBackgroungScanCondition,
&pParam->normalQualityForBackgroungScanCondition,
&pParam->rssiFilterWeight,
&pParam->snrFilterWeight);
return OK;
}
/**
*
* apConn_setRoamThresholds
*
* \b Description:
*
* Used to configure roaming thresholds
*
* \b ARGS:
*
* I - pParam - pointer to type and details of configuration request\n
*
* \b RETURNS:
*
* OK if successful, NOK otherwise.
*
* \sa
*/
TI_STATUS apConn_setRoamThresholds(TI_HANDLE hAPConnection, roamingMngrThresholdsConfig_t *pParam)
{
apConn_t *pAPConnection = (apConn_t *)hAPConnection;
AP_CONN_VALIDATE_HANDLE(hAPConnection);
/* If low quality trigger threshold is set to 0 - this is the request to ignore this trigger */
/* Otherwise store it */
if (pParam->lowRssiThreshold == (INT8)AP_CONNECT_TRIGGER_IGNORED)
{
pAPConnection->isRssiTriggerMaskedOut = TRUE;
pParam->lowRssiThreshold = pAPConnection->rssiThreshold;
}
else
{
pAPConnection->isRssiTriggerMaskedOut = FALSE;
pAPConnection->rssiThreshold = pParam->lowRssiThreshold;
}
if (pParam->txRateThreshold == AP_CONNECT_TRIGGER_IGNORED)
{
pAPConnection->islowRateTriggerMaskedOut = TRUE;
pParam->txRateThreshold = pAPConnection->lowRateThreshold;
}
else
{
pAPConnection->islowRateTriggerMaskedOut = FALSE;
pAPConnection->lowRateThreshold = pParam->txRateThreshold;
}
if (pParam->dataRetryThreshold == AP_CONNECT_TRIGGER_IGNORED)
{
pAPConnection->isConsTxFailureMaskedOut = TRUE;
pParam->dataRetryThreshold = pAPConnection->txFailureThreshold;
}
else
{
pAPConnection->isConsTxFailureMaskedOut = FALSE;
pAPConnection->txFailureThreshold = pParam->dataRetryThreshold;
}
if (pParam->rssiFilterWeight == (UINT8)AP_CONNECT_TRIGGER_IGNORED)
{
pParam->rssiFilterWeight = RSSI_DEFAULT_WEIGHT;
}
if (pParam->snrFilterWeight == (UINT8)AP_CONNECT_TRIGGER_IGNORED)
{
pParam->snrFilterWeight = SNR_DEFAULT_WEIGHT;
}
pAPConnection->isSnrTriggerMaskedOut = FALSE;
pAPConnection->snrThreshold = pParam->lowSnrThreshold;
currBSS_updateRoamingTriggers(pAPConnection->hCurrBSS, pParam);
rateAdaptation_configLowRateThrsh(pAPConnection->hRateAdapt,pParam->txRateThreshold);
return OK;
}
/**
*
* apConn_registerRoamMngrCallb
*
* \b Description:
*
* Used to store method of Roaming Manager in the internal database of AP Connection Module.
* If this function was never called, any roaming event would cause disconnect.
*
* \b ARGS:
*
* I - callbackType - type of callback \n
* I - callbackFunction - pointer to callback \n
*
* \b RETURNS:
*
* OK if successful, NOK otherwise.
*
* \sa
*/
TI_STATUS apConn_registerRoamMngrCallb(TI_HANDLE hAPConnection,
apConn_roamMngrCallb_t roamEventCallb,
apConn_roamMngrCallb_t reportStatusCallb,
apConn_roamMngrCallb_t returnNeighborApsCallb)
{
apConn_t *pAPConnection;
apConn_connStatus_t reportStatus;
paramInfo_t param;
AP_CONN_VALIDATE_HANDLE(hAPConnection);
pAPConnection = (apConn_t *)hAPConnection;
pAPConnection->roamEventCallb = roamEventCallb;
pAPConnection->reportStatusCallb = reportStatusCallb;
if ((pAPConnection->roamingEnabled) && (pAPConnection->currentState != AP_CONNECT_STATE_IDLE))
{
param.paramType = ASSOC_ASSOCIATION_RESP_PARAM;
assoc_getParam(pAPConnection->hAssoc, &param);
reportStatus.dataBuf = (char *)(param.content.applicationConfigBuffer.buffer);
reportStatus.dataBufLength = param.content.applicationConfigBuffer.bufferSize;
reportStatus.status = CONN_STATUS_CONNECTED;
reportStatusCallb(pAPConnection->hRoamMng, &reportStatus);
}
((apConn_t *)hAPConnection)->returnNeighborApsCallb = returnNeighborApsCallb;
return OK;
}
/**
*
* apConn_unregisterRoamMngrCallb
*
* \b Description:
*
* Used to Erase methods of Roaming Manager from the internal database of AP Connection
* module. From the moment this function was called, any roaming event would cause disconnect.
*
* \b ARGS:
*
* \b RETURNS:
*
* OK if successful, NOK otherwise.
*
* \sa
*/
TI_STATUS apConn_unregisterRoamMngrCallb(TI_HANDLE hAPConnection)
{
apConn_t *pAPConnection;
AP_CONN_VALIDATE_HANDLE(hAPConnection);
pAPConnection = (apConn_t *)hAPConnection;
pAPConnection->roamEventCallb = NULL;
pAPConnection->reportStatusCallb = NULL;
pAPConnection->returnNeighborApsCallb = NULL;
if ((pAPConnection->currentState != AP_CONNECT_STATE_IDLE) && (pAPConnection->currentState != AP_CONNECT_STATE_WAIT_ROAM))
{
/* Roaming Manager is unregistering it's callbacks in the middle of roaming - disconnect */
apConn_smEvent(&(pAPConnection->currentState), AP_CONNECT_EVENT_STOP, pAPConnection);
}
return OK;
}
/**
*
* apConn_disconnect
*
* \b Description:
*
* Roaming Manager calls this function when it fails to find candidate for roaming from
* one hand, and the connection with current AP is not possible from another.
*
* \b ARGS:
*
* \b RETURNS:
*
* OK if successful, NOK otherwise.
*
* \sa
*/
TI_STATUS apConn_disconnect(TI_HANDLE hAPConnection)
{
apConn_t *pAPConnection;
AP_CONN_VALIDATE_HANDLE(hAPConnection);
pAPConnection = (apConn_t *)hAPConnection;
UPDATE_SEND_DEAUTH_PACKET_FLAG(pAPConnection->roamReason);
apConn_smEvent(&(pAPConnection->currentState), AP_CONNECT_EVENT_STOP, pAPConnection);
pAPConnection->disconnectFromRoamMngrNum++;
return OK;
}
/**
*
* apConn_getStaCapabilities
*
* \b Description:
*
* Roaming Manager calls this function during selection of new candidate for roaming.
* Returned are local Station capabilities (IEs) of quality and privacy, needed to
* evaluate AP sites as suitable for roaming.
*
* \b ARGS:
*
* O - ie_list - station capabilities \n
*
* \b RETURNS:
*
* OK if successful, NOK otherwise.
*
* \sa
*/
TI_STATUS apConn_getStaCapabilities(TI_HANDLE hAPConnection,
apConn_staCapabilities_t *ie_list)
{
apConn_t *pAPConnection = (apConn_t *)hAPConnection;
apConn_staCapabilities_t *pList;
paramInfo_t param;
AP_CONN_VALIDATE_HANDLE(hAPConnection);
pList = ie_list;
/* Get authentication suite type */
param.paramType = RSN_EXT_AUTHENTICATION_MODE;
rsn_getParam(pAPConnection->hPrivacy, &param);
switch (param.content.rsnExtAuthneticationMode)
{
case RSN_EXT_AUTH_MODE_OPEN:
pList->authMode = os802_11AuthModeOpen;
break;
case RSN_EXT_AUTH_MODE_SHARED_KEY:
pList->authMode = os802_11AuthModeShared;
break;
case RSN_EXT_AUTH_MODE_AUTO_SWITCH:
pList->authMode = os802_11AuthModeAutoSwitch;
break;
case RSN_EXT_AUTH_MODE_WPA:
pList->authMode = os802_11AuthModeWPA;
break;
case RSN_EXT_AUTH_MODE_WPAPSK:
pList->authMode = os802_11AuthModeWPAPSK;
break;
case RSN_EXT_AUTH_MODE_WPANONE:
pList->authMode = os802_11AuthModeWPANone;
break;
case RSN_EXT_AUTH_MODE_WPA2:
pList->authMode = os802_11AuthModeWPA2;
break;
case RSN_EXT_AUTH_MODE_WPA2PSK:
pList->authMode = os802_11AuthModeWPA2PSK;
break;
default:
pList->authMode = os802_11AuthModeOpen;
break;
}
/* Get encryption type */
param.paramType = RSN_ENCRYPTION_STATUS_PARAM;
rsn_getParam(pAPConnection->hPrivacy, &param);
switch (param.content.rsnEncryptionStatus)
{
case RSN_CIPHER_NONE:
pList->encryptionType = OS_ENCRYPTION_TYPE_NONE;
break;
case RSN_CIPHER_WEP:
case RSN_CIPHER_WEP104:
pList->encryptionType = OS_ENCRYPTION_TYPE_WEP;
break;
case RSN_CIPHER_TKIP:
case RSN_CIPHER_CKIP:
pList->encryptionType = OS_ENCRYPTION_TYPE_TKIP;
break;
case RSN_CIPHER_AES_WRAP:
case RSN_CIPHER_AES_CCMP:
pList->encryptionType = OS_ENCRYPTION_TYPE_AES;
break;
default:
pList->encryptionType = OS_ENCRYPTION_TYPE_NONE;
break;
}
/* Get supported rates */
param.paramType = SITE_MGR_DESIRED_SUPPORTED_RATE_SET_PARAM;
siteMgr_getParam(pAPConnection->hSiteMgr, &param);
os_memoryCopy(pAPConnection->hOs, (void *)param.content.siteMgrDesiredSupportedRateSet.ratesString, pList->rateMask, sizeof(OS_802_11_RATES_EX));
/* Get mode: 2.4G, 5G or Dual */
param.paramType = SITE_MGR_DESIRED_DOT11_MODE_PARAM;
siteMgr_getParam(pAPConnection->hSiteMgr, &param);
pList->networkType = (OS_802_11_NETWORK_TYPE)param.content.siteMgrDot11Mode;
switch(param.content.siteMgrDot11Mode)
{
case DOT11_B_MODE:
pList->networkType = os802_11DS;
break;
case DOT11_A_MODE:
pList->networkType = os802_11OFDM5;
break;
case DOT11_G_MODE:
pList->networkType = os802_11OFDM24;
break;
case DOT11_DUAL_MODE:
pList->networkType = os802_11Automode;
break;
default:
pList->networkType = os802_11DS;
break;
}
/* Get EXC status */
#ifdef EXC_MODULE_INCLUDED
param.paramType = EXC_ENABLED;
excMngr_getParam(pAPConnection->hExcMngr, &param);
pList->excEnabled = (param.content.excEnabled==EXC_MODE_ENABLED)? TRUE : FALSE;
#else
pList->excEnabled = FALSE;
#endif
/* Get QoS type */
param.paramType = QOS_MNGR_ACTIVE_PROTOCOL;
qosMngr_getParams(pAPConnection->hQos, &param);
pList->qosEnabled = (param.content.qosSiteProtocol==NONE_QOS)? FALSE : TRUE;
pList->regDomain = REG_DOMAIN_FIXED;
/* Get regulatory domain type */
param.paramType = REGULATORY_DOMAIN_MANAGEMENT_CAPABILITY_ENABLED_PARAM;
regulatoryDomain_getParam(pAPConnection->hRegulatoryDomain, &param);
if (param.content.spectrumManagementEnabled)
{ /* 802.11h is enabled (802.11h includes 802.11d) */
pList->regDomain = REG_DOMAIN_80211H;
}
else
{
param.paramType = REGULATORY_DOMAIN_ENABLED_PARAM;
regulatoryDomain_getParam(pAPConnection->hRegulatoryDomain, &param);
if (param.content.regulatoryDomainEnabled)
{ /* 802.11d is enabled */
pList->regDomain = REG_DOMAIN_80211D;
}
}
return OK;
}
/**
*
* apConn_connectToAP
*
* \b Description:
*
* Roaming Manager calls this function when it has completed the process of selection
* of new AP candidate for roaming. In addition, Roaming manager informs AP Connection
* module whether this is new AP or the current one, and whether to perform full
* roaming procedure or just to retain to current AP.
*
* \b ARGS:
*
* I - requestType - Connect to new AP, current AP (retain to current AP or re-connect) \n
* I - newAP - Pointer to parameters list of AP candidate for roaming \n
*
* \b RETURNS:
*
* OK if successful, NOK otherwise.
*
* \sa
*/
TI_STATUS apConn_connectToAP(TI_HANDLE hAPConnection,
bssEntry_t *newAP,
apConn_connRequest_t *request,
BOOL reNegotiateTspec)
{
apConn_t *pAPConnection = (apConn_t *)hAPConnection;
AP_CONN_VALIDATE_HANDLE(hAPConnection);
pAPConnection->requestType = request->requestType;
switch (request->requestType)
{
case AP_CONNECT_RETAIN_CURR_AP:
apConn_smEvent(&(pAPConnection->currentState), AP_CONNECT_EVENT_RETAIN_CURRENT_AP, pAPConnection);
break;
case AP_CONNECT_FULL_TO_AP:
pAPConnection->removeKeys = TRUE;
pAPConnection->newAP = newAP;
pAPConnection->roamingFailedHandoverNum++;
pAPConnection->reNegotiateTSPEC = reNegotiateTspec;
apConn_smEvent(&(pAPConnection->currentState), AP_CONNECT_EVENT_START_ROAM, pAPConnection);
break;
case AP_CONNECT_FAST_TO_AP:
case AP_CONNECT_RECONNECT_CURR_AP:
pAPConnection->removeKeys = FALSE;
pAPConnection->newAP = newAP;
pAPConnection->roamingFailedHandoverNum++;
pAPConnection->reNegotiateTSPEC = reNegotiateTspec;
apConn_smEvent(&(pAPConnection->currentState), AP_CONNECT_EVENT_START_ROAM, pAPConnection);
break;
default:
break;
}
/* If there is vendor specific IE to attach to Assoc req, store it now */
if (request->dataBufLength > 0)
{
pAPConnection->vsIEbuf = request->dataBuf;
pAPConnection->vsIElength = request->dataBufLength;
}
return OK;
}
/**
*
* apConn_getBSSParams
*
* \b Description:
*
* Roaming Manager calls this function in order to evaluate the quality of new
* AP candidates for roaming against the quality of current AP.
* The function returns parameters of current AP.
*
* \b ARGS:
*
* O - currentAP - Pointer to parameters list of current AP \n
*
* \b RETURNS:
*
* Pointer to current BSS parameters database if successful, NULL otherwise.
*
* \sa
*/
bssEntry_t *apConn_getBSSParams(TI_HANDLE hAPConnection)
{
#ifdef TI_DBG
if (hAPConnection == NULL) /* Failed to allocate control block */
{
WLAN_OS_REPORT(("FATAL ERROR: apConn_create(): Error allocating cb - aborting\n"));
return NULL;
}
#endif
return currBSS_getBssInfo(((apConn_t *)hAPConnection)->hCurrBSS);
}
/**
*
* apConn_isSiteBanned
*
* \b Description:
*
* Roaming Manager calls this function during selection of new candidate for roaming.
* Only APs which are not marked as banned are allowed to be selected.
*
* \b ARGS:
*
* O - givenAp - Pointer to BSSID to check if banned \n
*
* \b RETURNS:
*
* TRUE if banned, FALSE otherwise.
*
* \sa
*/
BOOL apConn_isSiteBanned(TI_HANDLE hAPConnection, macAddress_t * givenAp)
{
apConn_t * pAPConnection = (apConn_t *) hAPConnection;
return rsn_isSiteBanned(pAPConnection->hPrivacy, *givenAp);
}
/**
*
* apConn_getPreAuthAPStatus
*
* \b Description:
*
* Roaming Manager calls this function during selection of new candidate for roaming.
* Among all APs with good quality, those who were pre-authenticated are preferred.
*
* \b ARGS:
*
* O - givenAp - Pointer to BSSID to check the pre-authenticated status for \n
*
* \b RETURNS:
*
* OK if successful, NOK otherwise.
*
* \sa
*/
BOOL apConn_getPreAuthAPStatus(TI_HANDLE hAPConnection,
macAddress_t *givenAp)
{
apConn_t *pAPConnection = (apConn_t *)hAPConnection;
paramInfoPartial_t param;
AP_CONN_VALIDATE_HANDLE(hAPConnection);
param.paramType = RSN_PRE_AUTH_STATUS;
os_memoryCopy(pAPConnection->hOs, (void *)param.content.rsnApMac.addr, (void *)givenAp->addr, MAC_ADDR_LEN);
rsn_getParamPartial(pAPConnection->hPrivacy, &param);
return param.content.rsnPreAuthStatus;
}
/**
*
* apConn_preAuthenticate
*
* \b Description:
*
* Roaming Manager calls this function periodically in order to update the list
* of pre-authenticated APs. The list is managed by WLAN driver and required
* by Roaming Manager during selection of roaming candidate process.
*
* \b ARGS:
*
* I - listAPs - List of APs to pre-authenticate \n
* I - sizeOfList - Size of list of APs to pre-authenticate \n
*
* \b RETURNS:
*
* OK if successful, NOK otherwise.
*
* \sa
*/
TI_STATUS apConn_preAuthenticate(TI_HANDLE hAPConnection, bssList_t *listAPs, UINT8 listAPs_numOfEntries)
{
apConn_t *pAPConnection = (apConn_t *)hAPConnection;
bssidList4PreAuth_t apList;
UINT32 listIndex, apListIndex;
bssEntry_t *pCurrentAP;
UINT8 *pRsnIEs;
#ifdef TI_DBG
if ((hAPConnection == NULL) || (listAPs == NULL))
{
WLAN_OS_REPORT(("FATAL ERROR: AP Connection context is not initiated\n"));
return NOK;
}
WLAN_REPORT_INFORMATION(pAPConnection->hReport, SITE_MGR_MODULE_LOG, ("apConn_reserveResources \n"));
#endif
if (listAPs_numOfEntries != 0) {
for (listIndex=0, apListIndex=0; listIndex<listAPs->numOfEntries; listIndex++)
{
os_memoryCopy(pAPConnection->hOs, &(apList.bssidList[apListIndex].bssId),
(void *)listAPs->BSSList[listIndex].BSSID.addr, MAC_ADDR_LEN);
/* search in the buffer pointer to the beginning of the
RSN IE according to the IE ID */
if (!parseIeBuffer(pAPConnection->hOs, listAPs->BSSList[listIndex].pBuffer, listAPs->BSSList[listIndex].bufferLength, RSN_IE_ID, &pRsnIEs, NULL, 0))
{
WLAN_REPORT_INFORMATION(pAPConnection->hReport, ROAMING_MANAGER_MODULE_LOG,
("apConn_preAuthenticate, no RSN IE was found \n"));
WLAN_REPORT_HEX_INFORMATION(pAPConnection->hReport, ROAMING_MANAGER_MODULE_LOG,
listAPs->BSSList[listIndex].pBuffer, listAPs->BSSList[listIndex].bufferLength);
continue;
}
apList.bssidList[apListIndex].pRsnIEs = (dot11_RSN_t*)pRsnIEs;
apList.bssidList[apListIndex].rsnIeLen = apList.bssidList[apListIndex].pRsnIEs->hdr.eleLen+2;
apListIndex++;
}
}
else
{
listIndex=0;
apListIndex=0;
}
/* Start pre-auth after any Conn succ (including first),
and not only when a New BSSID was added, in order to save/refresh
PMKID of the current AP.*/
{
/* Add the current BSSID to the list */
pCurrentAP = apConn_getBSSParams(pAPConnection);
os_memoryCopy(pAPConnection->hOs, &(apList.bssidList[apListIndex].bssId),
(void *)pCurrentAP->BSSID.addr, MAC_ADDR_LEN);
/* search in the buffer pointer to the beginning of the
RSN IE according to the IE ID */
if (!parseIeBuffer(pAPConnection->hOs, pCurrentAP->pBuffer, pCurrentAP->bufferLength, RSN_IE_ID, &pRsnIEs, NULL, 0))
{
WLAN_REPORT_ERROR(pAPConnection->hReport, ROAMING_MANAGER_MODULE_LOG,
("apConn_preAuthenticate, no RSN IE was found in the current BSS, BSSID=0x%x-0x%x-0x%x-0x%x-0x%x-0x%x \n",
pCurrentAP->BSSID.addr[0], pCurrentAP->BSSID.addr[1], pCurrentAP->BSSID.addr[2],
pCurrentAP->BSSID.addr[3], pCurrentAP->BSSID.addr[4], pCurrentAP->BSSID.addr[5]));
HexDumpData(pCurrentAP->pBuffer, pCurrentAP->bufferLength);
apList.bssidList[apListIndex].pRsnIEs = NULL;
apList.bssidList[apListIndex].rsnIeLen = 0;
}
else
{
apList.bssidList[apListIndex].pRsnIEs = (dot11_RSN_t*)pRsnIEs;
apList.bssidList[apListIndex].rsnIeLen = apList.bssidList[apListIndex].pRsnIEs->hdr.eleLen+2;
}
apList.NumOfItems = apListIndex+1;
rsn_startPreAuth(pAPConnection->hPrivacy, &apList);
}
return OK;
}
/**
*
* apConn_prepareToRoaming
*
* \b Description:
*
* Roaming Manager calls this function when roaming event is received and Roaming Manager
* wishes to start the roaming process, thus want to prevent scan and measurement in the
* system. The function will return OK if the allocation is performed, PEND if the
* allocation is started, NOK in case the allocation is not possible.
* In case of successful allocation, Roaming Manager will be informed via callback about
* the end of the allocation.
*
* \b ARGS:
*
* I - reason - the reason for roaming \n
*
* \b RETURNS:
*
* OK if successful, NOK otherwise.
*
* \sa
*/
TI_STATUS apConn_prepareToRoaming(TI_HANDLE hAPConnection, apConn_roamingTrigger_e reason)
{
apConn_t *pAPConnection = (apConn_t *)hAPConnection;
AP_CONN_VALIDATE_HANDLE(hAPConnection);
pAPConnection->roamReason = reason;
return apConn_smEvent(&(pAPConnection->currentState), AP_CONNECT_EVENT_PREPARE_FOR_ROAMING, pAPConnection);
}
/**
*
* apConn_indicateSwitchChannelInProgress
*
* \b Description:
*
* This function is called when switch channel process is started; it will trigger
* AP Connection state machine from 'Wait for roaming start' to 'Switch channel in progress'
* state.
*
* \b ARGS:
*
* I - reason - the reason for roaming \n
*
* \b RETURNS:
*
* OK if successful, NOK otherwise.
*
* \sa
*/
TI_STATUS apConn_indicateSwitchChannelInProgress(TI_HANDLE hAPConnection)
{
apConn_t *pAPConnection = (apConn_t *)hAPConnection;
AP_CONN_VALIDATE_HANDLE(hAPConnection);
apConn_smEvent(&(pAPConnection->currentState), AP_CONNECT_EVENT_START_SWITCH_CHANNEL, pAPConnection);
return OK;
}
/**
*
* apConn_indicateSwitchChannelFinished
*
* \b Description:
*
* This function is called when switch channel process is finished
*
* \b ARGS:
*
* I - reason - the reason for roaming \n
*
* \b RETURNS:
*
* OK if successful, NOK otherwise.
*
* \sa
*/
TI_STATUS apConn_indicateSwitchChannelFinished(TI_HANDLE hAPConnection)
{
apConn_t *pAPConnection = (apConn_t *)hAPConnection;
AP_CONN_VALIDATE_HANDLE(hAPConnection);
apConn_smEvent(&(pAPConnection->currentState), AP_CONNECT_EVENT_FINISHED_SWITCH_CH, pAPConnection);
return OK;
}
/**
*
* apConn_start
*
* \b Description:
*
* Called by SME module when new connection has been successfully established (first time connection)
*
* \b ARGS:
*
* I - isValidBSS - if FALSE, no roaming shall be performed, disconnect upon any roaming event;
* other parameters of current AP can be received from Current BSS module
*
* \b RETURNS:
*
* OK if successful, NOK otherwise.
*
* \sa
*/
TI_STATUS apConn_start(TI_HANDLE hAPConnection, BOOLEAN roamingEnabled)
{
apConn_t *pAPConnection = (apConn_t *)hAPConnection;
AP_CONN_VALIDATE_HANDLE(hAPConnection);
pAPConnection->roamingEnabled = roamingEnabled;
apConn_smEvent(&(pAPConnection->currentState), AP_CONNECT_EVENT_START, pAPConnection);
return OK;
}
/**
*
* apConn_stop
*
* \b Description:
*
* Called by SME module when current connection must be taken down
* (due to driver download, connection failure or any other reason)
*
* \b ARGS:
*
* \b RETURNS:
*
* OK if successful, NOK otherwise.
*
* \sa
*/
TI_STATUS apConn_stop(TI_HANDLE hAPConnection, BOOLEAN removeKeys, BOOLEAN immediateShutdown)
{
apConn_t *pAPConnection = (apConn_t *)hAPConnection;
pAPConnection->stopFromSmeNum++;
pAPConnection->removeKeys = removeKeys;
pAPConnection->sendDeauthPacket = !(immediateShutdown); /* If immediateShutdown is TRUE, no need to send DISASSOC frame - used during unload process */
pAPConnection->reNegotiateTSPEC = FALSE;
pAPConnection->voiceTspecConfigured = FALSE;
pAPConnection->videoTspecConfigured = FALSE;
/* Mark that the connection is stopped due to reason outside the scope of this module */
pAPConnection->bNonRoamingDisAssocReason = TRUE;
apConn_smEvent(&(pAPConnection->currentState), AP_CONNECT_EVENT_STOP, pAPConnection);
return OK;
}
/**
*
* apConn_reportRoamingEventDisconnect
*
* \b Description:
*
* Called by Roaming Manager to inform of Disconnect
* uStatusCode - status code of deauth/disassoc packet
* bDeAuthenticate - Whether this packet is DeAuth ( if
* DisAssoc than FALSE)
*
* \b ARGS:
*
*
* \b RETURNS:
*
* OK if successful, NOK otherwise.
*
* \sa
*/
TI_STATUS apConn_reportRoamingEventDisconnect(TI_HANDLE hAPConnection,UINT16 uStatusCode,BOOLEAN bDeAuthenticate )
{
apConn_t *pAPConnection = (apConn_t *)hAPConnection;
roamingEventData_u RoamingEventData;
RoamingEventData.APDisconnect.uStatusCode = uStatusCode ; /* status code of deauth/disassoc packet */
RoamingEventData.APDisconnect.bDeAuthenticate = bDeAuthenticate; /* TRUE state that it is DeAuth packet */
apConn_reportRoamingEvent(pAPConnection, ROAMING_TRIGGER_AP_DISCONNECT, &RoamingEventData);
return( TI_OK );
}
/**
*
* apConn_reportRoamingEvent
*
* \b Description:
*
* Called when one of roaming events occur
*
* \b ARGS:
*
* I - roamingEventType
* I - pRoamingEventData - in case of 'Tx rate' event, or AP disconnect
*
* \b RETURNS:
*
* OK if successful, NOK otherwise.
*
* \sa
*/
TI_STATUS apConn_reportRoamingEvent(TI_HANDLE hAPConnection,
apConn_roamingTrigger_e roamingEventType,
roamingEventData_u *pRoamingEventData)
{
apConn_t *pAPConnection = (apConn_t *)hAPConnection;
paramInfo_t param; /* parameter for retrieving BSSID */
AP_CONN_VALIDATE_HANDLE(hAPConnection);
WLAN_REPORT_INFORMATION(pAPConnection->hReport, ROAMING_MANAGER_MODULE_LOG,
("apConn_reportRoamingEvent, type=%d, cur_state=%d, roamingEnabled=%d, roamEventCallb=%p \n",
roamingEventType, pAPConnection->currentState,
pAPConnection->roamingEnabled, pAPConnection->roamEventCallb));
/* 1. Check if this is Rogue AP test case */
if (roamingEventType == ROAMING_TRIGGER_AP_DISCONNECT)
{
if (pRoamingEventData != NULL)
{ /* Save the disconnect reason for future use */
pAPConnection->APDisconnect.uStatusCode = pRoamingEventData->APDisconnect.uStatusCode;
pAPConnection->APDisconnect.bDeAuthenticate = pRoamingEventData->APDisconnect.bDeAuthenticate;
}
if ((pAPConnection->ignoreDeauthReason0) && (pRoamingEventData!=NULL) &&
(pAPConnection->APDisconnect.uStatusCode == 0))
{ /* This is required for Rogue AP test,
When Rogue AP due to invalid User name, deauth with reason 0 arrives before the Rogue AP,
and this EXC test fails.*/
WLAN_REPORT_INFORMATION(pAPConnection->hReport, ROAMING_MANAGER_MODULE_LOG,
("apConn_reportRoamingEvent, Ignore DeAuth with reason 0 \n"));
return OK;
}
WLAN_REPORT_INFORMATION(pAPConnection->hReport, ROAMING_MANAGER_MODULE_LOG,
("apConn_reportRoamingEvent, DeAuth with reason %d \n", pAPConnection->APDisconnect.uStatusCode));
if (pAPConnection->APDisconnect.uStatusCode == STATUS_CODE_802_1X_AUTHENTICATION_FAILED)
{
#ifdef EXC_MODULE_INCLUDED
TI_STATUS status;
/* Raise the EAP-Failure as event */
status = excMngr_rogueApDetected (pAPConnection->hExcMngr, RSN_AUTH_STATUS_CHALLENGE_FROM_AP_FAILED);
#endif
/* Remove AP from candidate list for a specified amount of time */
param.paramType = SITE_MGR_CURRENT_BSSID_PARAM;
siteMgr_getParam(pAPConnection->hSiteMgr, &param);
WLAN_REPORT_INFORMATION(pAPConnection->hReport, ROAMING_MANAGER_MODULE_LOG,
("current station is banned from the roaming candidates list for %d Ms\n",
RSN_AUTH_FAILURE_TIMEOUT));
rsn_banSite(pAPConnection->hPrivacy, param.content.siteMgrDesiredBSSID, RSN_SITE_BAN_LEVEL_FULL, RSN_AUTH_FAILURE_TIMEOUT);
}
}
/* 2. Check if received trigger is masked out */
if (((pAPConnection->isConsTxFailureMaskedOut) && (roamingEventType == ROAMING_TRIGGER_MAX_TX_RETRIES)) ||
((pAPConnection->isRssiTriggerMaskedOut) && (roamingEventType == ROAMING_TRIGGER_LOW_QUALITY)) ||
((pAPConnection->isSnrTriggerMaskedOut) && (roamingEventType == ROAMING_TRIGGER_LOW_SNR)) ||
((pAPConnection->islowRateTriggerMaskedOut)&& (roamingEventType == ROAMING_TRIGGER_LOW_TX_RATE)))
{
WLAN_REPORT_INFORMATION(pAPConnection->hReport, ROAMING_MANAGER_MODULE_LOG, ("apConn_reportRoamingEvent, trigger ignored \n"));
return OK;
}
/* 3. Valid trigger received: */
/* 3a. Update statistics */
pAPConnection->roamingTriggerEvents[roamingEventType]++;
/* 3b. Store the most severe trigger */
if (pAPConnection->roamReason < roamingEventType)
{
pAPConnection->roamReason = roamingEventType;
}
/* 3c. Check if Roaming Manager is available */
if (((!pAPConnection->roamingEnabled) || (pAPConnection->roamEventCallb == NULL) ||
(pAPConnection->currentState == AP_CONNECT_STATE_IDLE))
&& (roamingEventType > ROAMING_TRIGGER_LOW_QUALITY)
&& (roamingEventType != ROAMING_TRIGGER_MAX_TX_RETRIES))
/*
* The last condition was added so that MAX_TX_RETRIES would not cause a disconnect.
* This is done because the current default value for max TX retries is good enough for
* roaming (i.e. it indicates a low quality AP), but would cause unnecessary disconnects
* if used when roaming is disabled
*/
{
/* 'Any SSID' configured, meaning Roaming Manager is not allowed to perform roaming,
or Roaming Manager is not registered for roaming events;
unless this is trigger to change parameters of background scan, disconnect the link */
WLAN_REPORT_INFORMATION(pAPConnection->hReport, ROAMING_MANAGER_MODULE_LOG, ("Disconnecting link due to roaming event: ev = %d\n", roamingEventType));
/* Handle IBSS case TBD to remove
Handle also the case where A first connection is in progress, and
de-auth arrived. */
if (pAPConnection->currentState == AP_CONNECT_STATE_IDLE)
{
apConn_reportConnStatusToSME(pAPConnection);
}
else
{
/* Infra-structure BSS case - disconnect the link */
if (roamingEventType >= ROAMING_TRIGGER_AP_DISCONNECT)
{
pAPConnection->removeKeys = TRUE;
}
else
{
pAPConnection->removeKeys = FALSE;
}
UPDATE_SEND_DEAUTH_PACKET_FLAG(roamingEventType);
apConn_smEvent(&(pAPConnection->currentState), AP_CONNECT_EVENT_STOP, pAPConnection);
}
return OK;
}
/* 4. Check if we are in the middle of switching channel */
if (pAPConnection->currentState == AP_CONNECT_STATE_SWITCHING_CHANNEL)
{
/* Trigger received in the middle of switch channel, continue without reporting Roaming Manager */
WLAN_REPORT_INFORMATION(pAPConnection->hReport, ROAMING_MANAGER_MODULE_LOG, ("Roaming event during switch channel: ev = %d\n", roamingEventType));
return OK;
}
/* 5. Report Roaming Manager */
if ((pAPConnection->roamingEnabled == TRUE) && (pAPConnection->roamEventCallb != NULL))
{
WLAN_REPORT_INFORMATION(pAPConnection->hReport, ROAMING_MANAGER_MODULE_LOG, ("Roaming event raised: ev = %d\n", roamingEventType));
if (roamingEventType == ROAMING_TRIGGER_LOW_QUALITY)
{
EvHandlerSendEvent(pAPConnection->hEvHandler, IPC_EVENT_LOW_RSSI, NULL,0);
}
/* Report to Roaming Manager */
pAPConnection->roamEventCallb(pAPConnection->hRoamMng, &roamingEventType);
}
return OK;
}
/**
*
* apConn_RoamHandoffFinished
*
* \b Description:
*
* Called when EXC module receives response from the supplicant or recognizes
* timeout while waiting for the response
*
* \b ARGS:
*
* \b RETURNS:
*
* \sa
*/
void apConn_RoamHandoffFinished(TI_HANDLE hAPConnection)
{
apConn_t *pAPConnection = (apConn_t *)hAPConnection;
#ifdef TI_DBG
if (hAPConnection == NULL) /* Failed to allocate control block */
{
WLAN_OS_REPORT(("FATAL ERROR: apConn_create(): Error allocating cb - aborting\n"));
return;
}
#endif
apConn_smEvent(&(pAPConnection->currentState), AP_CONNECT_EVENT_FINISHED_HAND_OVER, pAPConnection);
}
/**
*
* apConn_DisconnCompleteInd
*
* \b Description:
*
* DISASSOCIATE Packet was sent - proceed with stopping the module
*
* \b ARGS:
*
* I - pData - pointer to AP Connection context\n
*
* \b RETURNS:
*
* OK on success, NOK otherwise.
*
* \sa
*/
TI_STATUS apConn_DisconnCompleteInd(TI_HANDLE hAPConnection, mgmtStatus_e status, UINT32 uStatusCode)
{
apConn_t *pAPConnection = (apConn_t *)hAPConnection;
AP_CONN_VALIDATE_HANDLE(hAPConnection);
apConn_smEvent(&(pAPConnection->currentState), AP_CONNECT_EVENT_FINISHED_OK, pAPConnection);
return OK;
}
/**
*
* apConn_updateNeighborAPsList
*
* \b Description:
*
* Called by EXC Manager when Priority APs are found
*
* \b ARGS:
*
* \b RETURNS:
*
* OK if successful, NOK otherwise.
*
* \sa
*/
void apConn_updateNeighborAPsList(TI_HANDLE hAPConnection, neighborAPList_t *pListOfpriorityAps)
{
apConn_t *pAPConnection = (apConn_t *)hAPConnection;
if (pAPConnection->returnNeighborApsCallb != NULL )
{
pAPConnection->returnNeighborApsCallb(pAPConnection->hRoamMng, pListOfpriorityAps);
}
}
/**
*
* apConn_getRoamingStatistics
*
* \b Description:
*
* Called from Measurement EXC sub-module when preparing TSM report to the AP.
*
* \b ARGS: AP Connection handle
*
* \b RETURNS:
*
* total number of successful roams
* delay of the latest successful roam
*
* \sa
*/
void apConn_getRoamingStatistics(TI_HANDLE hAPConnection, UINT8 *roamingCount, UINT16 *roamingDelay)
{
apConn_t *pAPConnection = (apConn_t *)hAPConnection;
/* Get (and clear) total number of successful roams */
*roamingCount = pAPConnection->roamingSuccesfulHandoverNum;
pAPConnection->roamingSuccesfulHandoverNum = 0;
/* Get delay of the latest roam */
*roamingDelay = pAPConnection->lastRoamingDelay;
pAPConnection->lastRoamingDelay = 0;
}
/**
*
* apConn_resetRoamingStatistics
*
* \b Description:
*
* Called from Measurement EXC sub-module in order to re-start roaming statistics.
*
* \b ARGS: AP Connection handle
*
* \b RETURNS:
*
* total number of successful roams
* delay of the latest successful roam
*
* \sa
*/
void apConn_resetRoamingStatistics(TI_HANDLE hAPConnection)
{
apConn_t *pAPConnection = (apConn_t *)hAPConnection;
pAPConnection->resetReportedRoamingStatistics = TRUE;
pAPConnection->roamingSuccesfulHandoverNum = 0;
pAPConnection->lastRoamingDelay = 0;
}
/**
*
* apConn_stopRoamingStatistics
*
* \b Description:
*
* Called from Measurement CCX sub-module in order to stop roaming statistics.
*
* \b ARGS: AP Connection handle
*
* \b RETURNS:
*
* \sa
*/
void apConn_stopRoamingStatistics(TI_HANDLE hAPConnection)
{
apConn_t *pAPConnection = (apConn_t *)hAPConnection;
pAPConnection->resetReportedRoamingStatistics = FALSE;
}
/**
*
* apConn_printStatistics
*
* \b Description:
*
* Called by Site Manager when request to print statistics is requested from CLI
*
* \b ARGS: AP Connection handle
*
* \b RETURNS:
*
* OK if successful, NOK otherwise.
*
* \sa
*/
void apConn_printStatistics(TI_HANDLE hAPConnection)
{
WLAN_OS_REPORT(("-------------- Roaming Statistics ---------------\n\n"));
WLAN_OS_REPORT(("- Low TX rate = %d\n", ((apConn_t *)hAPConnection)->roamingTriggerEvents[ROAMING_TRIGGER_LOW_TX_RATE]));
WLAN_OS_REPORT(("- Low SNR = %d\n", ((apConn_t *)hAPConnection)->roamingTriggerEvents[ROAMING_TRIGGER_LOW_SNR]));
WLAN_OS_REPORT(("- Low Quality = %d\n", ((apConn_t *)hAPConnection)->roamingTriggerEvents[ROAMING_TRIGGER_LOW_QUALITY]));
WLAN_OS_REPORT(("- MAX TX retries = %d\n", ((apConn_t *)hAPConnection)->roamingTriggerEvents[ROAMING_TRIGGER_MAX_TX_RETRIES]));
WLAN_OS_REPORT(("- BSS Loss TX = %d\n", ((apConn_t *)hAPConnection)->roamingTriggerEvents[ROAMING_TRIGGER_BSS_LOSS]));
WLAN_OS_REPORT(("- Switch Channel = %d\n", ((apConn_t *)hAPConnection)->roamingTriggerEvents[ROAMING_TRIGGER_SWITCH_CHANNEL]));
WLAN_OS_REPORT(("- AP Disconnect = %d\n", ((apConn_t *)hAPConnection)->roamingTriggerEvents[ROAMING_TRIGGER_AP_DISCONNECT]));
WLAN_OS_REPORT(("- SEC attack = %d\n", ((apConn_t *)hAPConnection)->roamingTriggerEvents[ROAMING_TRIGGER_SECURITY_ATTACK]));
WLAN_OS_REPORT(("\n"));
WLAN_OS_REPORT(("- Succesfull Total roaming = %d\n", ((apConn_t *)hAPConnection)->roamingSuccesfulHandoverTotalNum));
WLAN_OS_REPORT(("- Unsuccesfull roaming = %d\n", ((apConn_t *)hAPConnection)->roamingFailedHandoverNum));
WLAN_OS_REPORT(("- Giving up roaming = %d\n", ((apConn_t *)hAPConnection)->retainCurrAPNum));
WLAN_OS_REPORT(("- Disconnect cmd from roaming manager = %d\n", ((apConn_t *)hAPConnection)->disconnectFromRoamMngrNum));
WLAN_OS_REPORT(("- Disconnect cmd from SME = %d\n", ((apConn_t *)hAPConnection)->stopFromSmeNum));
WLAN_OS_REPORT(("\n"));
}
/**
*
* apConn_getVendorSpecificIE
*
* \b Description:
*
* Called by Association SM when request to associate is built and sent to AP;
* returns request updated with vendor specific info-element
*
* \b ARGS:
*
* I - hAPConnection - AP Connection handle\n
* O - pRequest - pointer to request buffer\n
* O - len - size of returned IE\n
*
* \b RETURNS:
*
* OK if successful, NOK otherwise.
*
* \sa
*/
TI_STATUS apConn_getVendorSpecificIE(TI_HANDLE hAPConnection, UINT8 *pRequest, UINT32 *len)
{
apConn_t *pAPConnection = (apConn_t *)hAPConnection;
if (pAPConnection->vsIElength > 0)
{
*len = pAPConnection->vsIElength;
os_memoryCopy(pAPConnection->hOs, pRequest, pAPConnection->vsIEbuf, pAPConnection->vsIElength);
}
else
{
*len = 0;
}
return OK;
}
/* Internal functions implementation */
/**
*
* apConn_smEvent
*
* \b Description:
*
* AP Connection state machine transition function
*
* \b ARGS:
*
* I/O - currentState - current state in the state machine\n
* I - event - specific event for the state machine\n
* I - pData - pointer to AP Connection context\n
*
* \b RETURNS:
*
* OK on success, NOK otherwise.
*
* \sa
*/
static TI_STATUS apConn_smEvent(apConn_smStates *currState, UINT8 event, void* data)
{
TI_STATUS status;
UINT8 nextState;
apConn_t *pAPConnection;
pAPConnection = (apConn_t *)data;
status = fsm_GetNextState(pAPConnection->apConnSM, (UINT8)*currState, event, &nextState);
if (status == OK)
{
WLAN_REPORT_SM(pAPConnection->hReport, ROAMING_MANAGER_MODULE_LOG,
("<%s, %s> --> %s\n\n",
apConn_stateDesc[*currState],
apConn_eventDesc[event],
apConn_stateDesc[nextState]));
status = fsm_Event(pAPConnection->apConnSM, (UINT8 *)currState, event, pAPConnection);
return status;
}
else
{
WLAN_REPORT_ERROR(pAPConnection->hReport, ROAMING_MANAGER_MODULE_LOG, ("apConn_smEvent, fsm_GetNextState error\n"));
return status;
}
}
/**
*
* apConn_smNop - Do nothing
*
* \b Description:
*
* Do nothing in the SM.
*
* \b ARGS:
*
* I - pData - pointer to AP Connection context \n
*
* \b RETURNS:
*
* OK if successful, NOK otherwise.
*
*
*/
static TI_STATUS apConn_smNop(void *pData)
{
WLAN_REPORT_INFORMATION((((apConn_t *)pData)->hReport), ROAMING_MANAGER_MODULE_LOG, ("apConn_smNop\n"));
return OK;
}
/**
*
* apConn_smUnexpected - Unexpected event
*
* \b Description:
*
* Unexpected event in the SM.
*
* \b ARGS:
*
* I - pData - pointer to AP Connection context \n
*
* \b RETURNS:
*
* OK if successful, NOK otherwise.
*
*
*/
static TI_STATUS apConn_smUnexpected(void *pData)
{
WLAN_REPORT_INFORMATION(((apConn_t *)pData)->hReport, ROAMING_MANAGER_MODULE_LOG, ("apConn_smUnexpected\n"));
return NOK;
}
/**
*
* apConn_startWaitingForTriggers
*
* \b Description:
*
* SME informs AP Connection module about successfull link establishment; start wiating for roaming triggers
*
* \b ARGS:
*
* I - pData - pointer to AP Connection context \n
*
* \b RETURNS:
*
* OK on success, NOK otherwise.
*
* \sa
*/
static TI_STATUS apConn_startWaitingForTriggers(void *pData)
{
apConn_t *pAPConnection;
apConn_connStatus_t reportStatus;
paramInfoPartial_t param;
pAPConnection = (apConn_t *)pData;
if ((pAPConnection->roamingEnabled) && (pAPConnection->reportStatusCallb != NULL))
{
param.paramType = ASSOC_ASSOCIATION_RESP_PARAM;
assoc_getParamPartial(pAPConnection->hAssoc, &param);
reportStatus.dataBuf = (char *)(param.content.applicationConfigBuffer.buffer);
reportStatus.dataBufLength = param.content.applicationConfigBuffer.bufferSize;
reportStatus.status = CONN_STATUS_CONNECTED;
pAPConnection->reportStatusCallb(pAPConnection->hRoamMng, &reportStatus);
}
pAPConnection->firstAttempt2Roam = TRUE;
pAPConnection->roamReason = ROAMING_TRIGGER_NONE;
pAPConnection->removeKeys = TRUE;
pAPConnection->sendDeauthPacket = TRUE;
pAPConnection->reNegotiateTSPEC = FALSE;
pAPConnection->voiceTspecConfigured = FALSE;
pAPConnection->videoTspecConfigured = FALSE;
return OK;
}
/**
*
* apConn_connectedToNewAP
*
* \b Description:
*
* After roaming was requested, Connection SM informs AP Connection module about
* successful link re-establishment; start waiting for roaming triggers
*
* \b ARGS:
*
* I - pData - pointer to AP Connection context \n
*
* \b RETURNS:
*
* OK on success, NOK otherwise.
*
* \sa
*/
static TI_STATUS apConn_connectedToNewAP(void *pData)
{
apConn_t *pAPConnection;
apConn_connStatus_t reportStatus;
paramInfoPartial_t param;
pAPConnection = (apConn_t *)pData;
/* Configure SCR group back to connection */
scr_setGroup (pAPConnection->hScr, SCR_GID_CONNECTED);
/* Erase vendor specific info-element if was defined for last AP Assoc request */
pAPConnection->vsIElength = 0;
/* TBD Notify Curr BSS module about update of current AP database */
if (pAPConnection->roamingFailedHandoverNum>0)
{
pAPConnection->roamingFailedHandoverNum--;
}
/* Report Roaming Manager */
if (pAPConnection->reportStatusCallb != NULL)
{
param.paramType = ASSOC_ASSOCIATION_RESP_PARAM;
assoc_getParamPartial(pAPConnection->hAssoc, &param);
reportStatus.dataBuf = (char *)(param.content.applicationConfigBuffer.buffer);
reportStatus.dataBufLength = param.content.applicationConfigBuffer.bufferSize;
reportStatus.status = CONN_STATUS_HANDOVER_SUCCESS;
pAPConnection->reportStatusCallb(pAPConnection->hRoamMng, &reportStatus);
}
pAPConnection->firstAttempt2Roam = TRUE;
pAPConnection->roamReason = ROAMING_TRIGGER_NONE;
pAPConnection->roamingSuccesfulHandoverTotalNum++;
pAPConnection->removeKeys = TRUE;
pAPConnection->sendDeauthPacket = TRUE;
pAPConnection->reNegotiateTSPEC = FALSE;
pAPConnection->voiceTspecConfigured = FALSE;
pAPConnection->videoTspecConfigured = FALSE;
if (!pAPConnection->resetReportedRoamingStatistics)
{
pAPConnection->roamingSuccesfulHandoverNum++;
pAPConnection->lastRoamingDelay =
(UINT16)os_timeStampMs(pAPConnection->hOs) - pAPConnection->roamingStartedTimestamp;
}
else
{
pAPConnection->resetReportedRoamingStatistics = FALSE;
}
/* Raise event of Roaming Completion */
WLAN_REPORT_INFORMATION(pAPConnection->hReport, ROAMING_MANAGER_MODULE_LOG,
("EvHandlerSendEvent -ROAMING_COMPLETE\n" ));
EvHandlerSendEvent(pAPConnection->hEvHandler, IPC_EVENT_ROAMING_COMPLETE, NULL, 0);
return OK;
}
/**
*
* apConn_stopConnection
*
* \b Description:
*
* Stop required before roaming was started
*
* \b ARGS:
*
* I - pData - pointer to AP Connection context\n
*
* \b RETURNS:
*
* OK on success, NOK otherwise.
*
* \sa
*/
static TI_STATUS apConn_stopConnection(void *pData)
{
apConn_t *pAPConnection;
disConnType_e disConnType;
pAPConnection = (apConn_t *)pData;
WLAN_REPORT_INFORMATION(pAPConnection->hReport, ROAMING_MANAGER_MODULE_LOG,
("apConn_stopConnection, calls conn_stop, removeKeys=%d, sendDeauthPacket=%d \n", pAPConnection->removeKeys, pAPConnection->sendDeauthPacket));
/* Erase vendor specific info-element if was defined for last AP Assoc request */
pAPConnection->vsIElength = 0;
/* In case AP connection was stopped by SME, and radioOn is false, meaning immidiate shutdown is required without disassoc frame */
/* Otherwise, ask for normal disconnection with disassoc frame */
disConnType = (pAPConnection->sendDeauthPacket == TRUE) ? DISCONN_TYPE_DEAUTH : DISCONN_TYPE_IMMEDIATE;
/* Stop Connection state machine - always immediate TBD */
conn_stop(pAPConnection->hConnSm,
disConnType,
STATUS_UNSPECIFIED,
FALSE, /* pAPConnection->removeKeys - for Roaming, do not remove the keys */
apConn_DisconnCompleteInd,
pAPConnection);
return OK;
}
/**
*
* apConn_reportDisconnected
*
* \b Description:
*
* Moving from 'Disconnecting' state to 'Idle':
* RoamMgr.status("not-connected")
*
* \b ARGS:
*
* I - pData - pointer to AP Connection context\n
*
* \b RETURNS:
*
* OK on success, NOK otherwise.
*
* \sa
*/
static TI_STATUS apConn_reportDisconnected(void *pData)
{
apConn_t *pAPConnection;
apConn_connStatus_t reportStatus;
pAPConnection = (apConn_t *)pData;
if (pAPConnection->reportStatusCallb != NULL)
{
reportStatus.status = CONN_STATUS_NOT_CONNECTED;
pAPConnection->reportStatusCallb(pAPConnection->hRoamMng, &reportStatus);
}
pAPConnection->firstAttempt2Roam = TRUE;
/* Notify SME */
apConn_reportConnStatusToSME(pAPConnection);
return OK;
}
/**
*
* apConn_retainAP
*
* \b Description:
*
* Roaming Manager gives up on roaming.
* Moving from 'Wait for connection command' back to 'Wait for roam started.
*
* \b ARGS:
*
* I - pData - pointer to AP Connection context\n
*
* \b RETURNS:
*
* OK on success, NOK otherwise.
*
* \sa
*/
static TI_STATUS apConn_retainAP(void *data)
{
apConn_t *pAPConnection;
apConn_connStatus_t reportStatus;
paramInfo_t param;
pAPConnection = (apConn_t *)data;
/* Configure SCR group back to connection */
scr_setGroup (pAPConnection->hScr, SCR_GID_CONNECTED);
/* Report Roaming Manager */
if (pAPConnection->reportStatusCallb != NULL)
{
param.paramType = ASSOC_ASSOCIATION_RESP_PARAM;
assoc_getParam(pAPConnection->hAssoc, &param);
reportStatus.dataBuf = (char *)(param.content.applicationConfigBuffer.buffer);
reportStatus.dataBufLength = param.content.applicationConfigBuffer.bufferSize;
reportStatus.status = CONN_STATUS_HANDOVER_SUCCESS;
pAPConnection->reportStatusCallb(pAPConnection->hRoamMng, &reportStatus);
}
pAPConnection->retainCurrAPNum++;
pAPConnection->roamReason = ROAMING_TRIGGER_NONE;
pAPConnection->removeKeys = TRUE;
pAPConnection->sendDeauthPacket = TRUE;
pAPConnection->reNegotiateTSPEC = FALSE;
pAPConnection->voiceTspecConfigured = FALSE;
pAPConnection->videoTspecConfigured = FALSE;
return OK;
}
/**
*
* apConn_requestCCKM
*
* \b Description:
*
* Roaming Manager requests to roaming.
* Get CCKM (prepare hand-off).
*
* \b ARGS:
*
* I - pData - pointer to AP Connection context\n
*
* \b RETURNS:
*
* OK on success, NOK otherwise.
*
* \sa
*/
static TI_STATUS apConn_requestCCKM(void *data)
{
apConn_t *pAPConnection;
TI_STATUS status;
pAPConnection = (apConn_t *)data;
#ifdef EXC_MODULE_INCLUDED
/* Send request to EXC module */
apConn_calcNewTsf(pAPConnection, (UINT8 *)&(pAPConnection->newAP->lastRxTSF), pAPConnection->newAP->lastRxHostTimestamp, pAPConnection->newAP->beaconInterval);
status = excMngr_startCckm(pAPConnection->hExcMngr, &(pAPConnection->newAP->BSSID), (UINT8 *)&(pAPConnection->newAP->lastRxTSF));
#else
status = OK;
apConn_RoamHandoffFinished(pAPConnection);
#endif
return status;
}
#ifdef EXC_MODULE_INCLUDED
/**
*
* calcNewTsfTimestamp - Calculates the TSF
*
* \b Description:
*
* Calculates the TSF according to the delta of the TSF from the last Beacon/Probe Resp and the current time.
*
* \b ARGS:
*
* I - hRoamingMngr - pointer to the roamingMngr SM context \n
* I/O - tsfTimeStamp - the TSF field in the site entry of the roaming candidate AP
* I - newSiteOsTimeStamp - the TS field in the site entry of the roaming candidate AP
*
* \b RETURNS:
*
* Nothing.
*
*
*/
static void apConn_calcNewTsf(apConn_t *hAPConnection, UINT8 *tsfTimeStamp, UINT32 newSiteOsTimeStamp, UINT32 beaconInterval)
{
apConn_t *pAPConnection = hAPConnection;
UINT32 osTimeStamp = os_timeStampMs(pAPConnection->hOs);
UINT32 deltaTimeStamp;
UINT32 tsfLsdw,tsfMsdw, newOsTimeStamp;
UINT32 remainder;
UINT8 newTsfTimestamp[TIME_STAMP_LEN];
/* get the delta TS between the TS of the last Beacon/ProbeResp-from the site table
and the current TS */
deltaTimeStamp = osTimeStamp - newSiteOsTimeStamp;
tsfLsdw = *((UINT32*)&tsfTimeStamp[0]);
tsfMsdw = *((UINT32*)&tsfTimeStamp[4]);
WLAN_REPORT_INFORMATION(pAPConnection->hReport, ROAMING_MANAGER_MODULE_LOG,
(" TSF time LSDW reversed=%x, TSF time MSDW reversed=%x\n",
tsfLsdw, tsfMsdw));
deltaTimeStamp = deltaTimeStamp*1000;/* from mSec to uSec*/
/* Before adding, save remainder */
remainder = tsfTimeStamp[3] + ((deltaTimeStamp & 0xff000000) >> 24);
/* The LS DW of the TS is the TSF taken from the last Beacon/Probe Resp
+ the delta TS from the time the Beacon/Probe Resp arrive till now. */
newOsTimeStamp = deltaTimeStamp+tsfLsdw;
/* substracting one beacon interval */
newOsTimeStamp -= (beaconInterval * 1024); /* im usec */
/* save just for debug printout */
deltaTimeStamp +=osTimeStamp; /* uMsec */
/* update the LSB of the TSF */
newTsfTimestamp[0] = newOsTimeStamp & 0x000000ff;
newTsfTimestamp[1] = (newOsTimeStamp & 0x0000ff00) >> 8;
newTsfTimestamp[2] = (newOsTimeStamp & 0x00ff0000) >> 16;
newTsfTimestamp[3] = (newOsTimeStamp & 0xff000000) >> 24;
/* increase the MSB in case of overflow */
if (remainder > 0xff)
{
tsfMsdw++;
}
/* update the MSB of the TSF */
newTsfTimestamp[4] = tsfMsdw & 0x000000ff;
newTsfTimestamp[5] = (tsfMsdw & 0x0000ff00) >> 8;
newTsfTimestamp[6] = (tsfMsdw & 0x00ff0000) >> 16;
newTsfTimestamp[7] = (tsfMsdw & 0xff000000) >> 24;
WLAN_REPORT_INFORMATION(pAPConnection->hReport, ROAMING_MANAGER_MODULE_LOG,
(" NEW TSF time: reversedTsfTimeStamp= 0x%x, New deltaTimeStamp= 0x%x, \n remainder=0x%x, new tsfTimeStamp=%x-%x-%x-%x-%x-%x-%x-%x\n",
newOsTimeStamp, deltaTimeStamp, remainder,
newTsfTimestamp[0], newTsfTimestamp[1], newTsfTimestamp[2], newTsfTimestamp[3],
newTsfTimestamp[4], newTsfTimestamp[5], newTsfTimestamp[6], newTsfTimestamp[7]));
os_memoryCopy(pAPConnection->hOs, tsfTimeStamp, newTsfTimestamp, TIME_STAMP_LEN);
}
#endif
/**
*
* apConn_invokeConnectionToNewAp
*
* \b Description:
*
* Got CCKM (hand-off), start re-connection to another AP
*
* \b ARGS:
*
* I - pData - pointer to AP Connection context\n
*
* \b RETURNS:
*
* OK on success, NOK otherwise.
*
* \sa
*/
static TI_STATUS apConn_invokeConnectionToNewAp(void *data)
{
apConn_t *pAPConnection;
connType_e connType;
paramInfoPartial_t param;
UINT8 staPrivacySupported, apPrivacySupported;
BOOL renegotiateTspec = FALSE;
pAPConnection = (apConn_t *)data;
pAPConnection->roamingStartedTimestamp = os_timeStampMs(pAPConnection->hOs);
/* Check privacy compatibility */
param.paramType = RSN_ENCRYPTION_STATUS_PARAM;
rsn_getParamPartial(pAPConnection->hPrivacy, &param);
staPrivacySupported = (param.content.rsnEncryptionStatus == RSN_CIPHER_NONE) ? FALSE : TRUE;
apPrivacySupported = ((pAPConnection->newAP->capabilities >> CAP_PRIVACY_SHIFT) & CAP_PRIVACY_MASK) ? TRUE : FALSE;
if (staPrivacySupported != apPrivacySupported)
{
param.paramType = RSN_MIXED_MODE;
rsn_getParamPartial(pAPConnection->hPrivacy, &param);
if (apPrivacySupported ||
(!param.content.rsnMixedMode && staPrivacySupported))
{
WLAN_REPORT_WARNING(pAPConnection->hReport, ROAMING_MANAGER_MODULE_LOG,
("%s: failed privacy comparison %d vs. %d\n", __FUNCTION__, staPrivacySupported, apPrivacySupported));
return (apConn_smEvent(&(pAPConnection->currentState), AP_CONNECT_EVENT_FINISHED_NOT_OK, pAPConnection));
}
}
/* Update data info of desired AP; in case of first attempt to roam,
store previous primary site info */
if (siteMgr_overwritePrimarySite(pAPConnection->hSiteMgr, pAPConnection->newAP, pAPConnection->firstAttempt2Roam) != OK)
{
WLAN_REPORT_WARNING(pAPConnection->hReport, ROAMING_MANAGER_MODULE_LOG,
("%s: failed to ovewrite Primary Site\n", __FUNCTION__));
return (apConn_smEvent(&(pAPConnection->currentState), AP_CONNECT_EVENT_FINISHED_NOT_OK, pAPConnection));
}
/* Update re-associate parameter of MLME */
if (pAPConnection->requestType == AP_CONNECT_FAST_TO_AP)
{
connType = CONN_TYPE_ROAM;
}
else
{
connType = CONN_TYPE_FIRST_CONN;
}
#ifdef EXC_MODULE_INCLUDED
/* Check the need in TSPEC re-negotiation */
if ( (pAPConnection->voiceTspecConfigured || pAPConnection->videoTspecConfigured)
&& pAPConnection->reNegotiateTSPEC )
{
/* If the candidate AP is at least EXCver4 AP, try to re-negotiate TSPECs */
if (excMngr_parseExcVer(pAPConnection->hExcMngr,
pAPConnection->newAP->pBuffer,
pAPConnection->newAP->bufferLength) >= 4)
{
renegotiateTspec = TRUE;
}
}
#endif
WLAN_REPORT_INFORMATION(pAPConnection->hReport, ROAMING_MANAGER_MODULE_LOG,
("%s: calls conn_start, removeKeys=%d, renegotiateTSPEC=%d\n", __FUNCTION__,
pAPConnection->removeKeys, renegotiateTspec));
/* Start Connection state machine */
return conn_start(pAPConnection->hConnSm,
connType,
apConn_ConnCompleteInd,
pAPConnection,
pAPConnection->removeKeys,
renegotiateTspec);
}
/**
*
* apConn_reportConnFail
*
* \b Description:
*
* Got 'Failed' indication from Connection state machine - inform Roaming Manager Module
*
* \b ARGS:
*
* I - pData - pointer to AP Connection context\n
*
* \b RETURNS:
*
* OK on success, NOK otherwise.
*
* \sa
*/
static TI_STATUS apConn_reportConnFail(void *data)
{
apConn_t *pAPConnection;
apConn_connStatus_t reportStatus;
paramInfoPartial_t param;
pAPConnection = (apConn_t *)data;
pAPConnection->firstAttempt2Roam = FALSE;
pAPConnection->resetReportedRoamingStatistics = FALSE;
/* Erase vendor specific info-element if was defined for last AP Assoc request */
pAPConnection->vsIElength = 0;
/* Report to Roaming Manager */
if (pAPConnection->reportStatusCallb != NULL)
{
param.paramType = ASSOC_ASSOCIATION_RESP_PARAM;
assoc_getParamPartial(pAPConnection->hAssoc, &param);
reportStatus.dataBuf = (char *)(param.content.applicationConfigBuffer.buffer);
reportStatus.dataBufLength = param.content.applicationConfigBuffer.bufferSize;
reportStatus.status = CONN_STATUS_HANDOVER_FAILURE;
pAPConnection->reportStatusCallb(pAPConnection->hRoamMng, &reportStatus);
}
return OK;
}
/**
*
* apConn_configureSCR
*
* \b Description:
*
* Got 'Failed' indication from Connection state machine - inform Roaming Manager Module
*
* \b ARGS:
*
* I - pData - pointer to AP Connection context\n
*
* \b RETURNS:
*
* OK on success, NOK otherwise.
*
* \sa
*/
static TI_STATUS apConn_configureDriverBeforeRoaming(void *pData)
{
apConn_t *pAPConnection = (apConn_t*)pData;
paramInfoPartial_t param;
/* Configure SCR group of allowed clients according to 'Roaming' rule */
scr_setGroup (pAPConnection->hScr, SCR_GID_ROAMING);
param.paramType = QOS_MNGR_VOICE_RE_NEGOTIATE_TSPEC;
qosMngr_getParamsPatial(pAPConnection->hQos, &param);
pAPConnection->voiceTspecConfigured = param.content.TspecConfigure.voiceTspecConfigure;
pAPConnection->videoTspecConfigured = param.content.TspecConfigure.videoTspecConfigure;
pAPConnection->resetReportedRoamingStatistics = FALSE;
return OK;
}
/**
*
* apConn_swChFinished
*
* \b Description:
*
* Switch channel completed; if there were roaming Manager triggers meanwhile,
* inform Roaming Manager Module
*
* \b ARGS:
*
* I - pData - pointer to AP Connection context\n
*
* \b RETURNS:
*
* OK on success, NOK otherwise.
*
* \sa
*/
static TI_STATUS apConn_swChFinished(void *pData)
{
apConn_t *pAPConnection = (apConn_t *)pData;
/* Inform Current BSS module */
currBSS_restartRssiCounting(pAPConnection->hCurrBSS);
/* If there are unreported roaming triggers of 'No AP' type,
report them now to roaming manager */
if (pAPConnection->roamReason >= ROAMING_TRIGGER_MAX_TX_RETRIES)
{
if ((pAPConnection->roamingEnabled == TRUE) &&
(pAPConnection->roamEventCallb != NULL))
{
/* Report to Roaming Manager */
pAPConnection->roamEventCallb(pAPConnection->hRoamMng, &pAPConnection->roamReason);
}
}
else
{
pAPConnection->roamReason = ROAMING_TRIGGER_NONE;
}
return OK;
}
/**
*
* apConn_handleTspecReneg
*
* \b Description:
*
* This function will be called when moving from CONNECTING state to
* START_TSPEC_RENEGOTIATION state. It checks if TSPEC re-negotiation was requested
* by roaming manager, if the TSPEC for voice was defined by user application,
* if the re-negotiation was performed during hand-over.
* If so, it will trigger moving to WAIT_ROAM state, otherwise it will start
* TSPEC negotiation, staying in the REESTABLISHING_VOICE state and waiting
* for results.
*
* \b ARGS:
*
* I - pData - pointer to AP Connection context\n
*
* \b RETURNS:
*
* OK on success, NOK otherwise.
*
* \sa
*/
static TI_STATUS apConn_handleTspecReneg (void *pData)
{
apConn_t *pAPConnection = (apConn_t *)pData;
paramInfo_t param;
if (pAPConnection->voiceTspecConfigured && pAPConnection->reNegotiateTSPEC)
{
param.paramType = QOS_MNGR_VOICE_RE_NEGOTIATE_TSPEC;
qosMngr_getParams(pAPConnection->hQos, &param);
if (param.content.TspecConfigure.voiceTspecConfigure == TRUE)
{
/* TSPEC is already configured, move to CONNECTED */
return apConn_smEvent(&(pAPConnection->currentState), AP_CONNECT_EVENT_FINISHED_OK, pAPConnection);
}
else
{
param.paramType = QOS_MNGR_RESEND_TSPEC_REQUEST;
param.content.qosRenegotiateTspecRequest.callback = (void *)apConn_qosMngrReportResultCallb;
param.content.qosRenegotiateTspecRequest.handler = pData;
if (qosMngr_setParams(pAPConnection->hQos, &param) != OK)
{
/* Re-negotiation of TSPEC cannot be performed */
return apConn_smEvent(&(pAPConnection->currentState), AP_CONNECT_EVENT_FINISHED_NOT_OK, pAPConnection);
}
return OK;
}
}
else
{
/* No need to re-negotiate TSPEC, move to CONNECTED */
return apConn_smEvent(&(pAPConnection->currentState), AP_CONNECT_EVENT_FINISHED_OK, pAPConnection);
}
}
/**
*
* apConn_qosMngrReportResultCallb
*
* \b Description:
*
* This function will be transferred to QoS manager upon request to start negotiation
* of the TSPEC for voice and signaling, and will be called when the voice TSPEC
* renegotiation is completed. The function will generate FINISHED_OK or
* FINISHED_NOK events to the state machine of AP Connection, triggering change of
* the current state.
*
* \b ARGS:
*
* I - hApConn - pointer to AP Connection context\n
* I - result - returned by Traffic admission control\n
*
* \b RETURNS:
*
* OK on success, NOK otherwise.
*
* \sa
*/
static TI_STATUS apConn_qosMngrReportResultCallb (TI_HANDLE hApConn, trafficAdmRequestStatus_e result)
{
apConn_t *pAPConnection = (apConn_t *)hApConn;
AP_CONN_VALIDATE_HANDLE(hApConn);
if (result == STATUS_TRAFFIC_ADM_REQUEST_ACCEPT)
{
apConn_smEvent(&(pAPConnection->currentState), AP_CONNECT_EVENT_FINISHED_OK, pAPConnection);
}
else
{
apConn_smEvent(&(pAPConnection->currentState), AP_CONNECT_EVENT_FINISHED_NOT_OK, pAPConnection);
}
return OK;
}
/**
*
* apConn_reportConnStatusToSME
*
* \b Description:
*
* Sends report to SME regarding the connection status
*
* \b ARGS:
*
* I - pAPConnection - pointer to AP Connection context\n
*
* \b RETURNS:
*
* OK on success, NOK otherwise.
*
* \sa
*/
static void apConn_reportConnStatusToSME (apConn_t *pAPConnection)
{
WLAN_REPORT_INFORMATION(pAPConnection->hReport, ROAMING_MANAGER_MODULE_LOG,
("%s roamingTrigger = %d, APDisconnectStatusCode = %d, bNonRoamingDisAssocReason = %d\n",
__FUNCTION__, pAPConnection->roamReason, pAPConnection->APDisconnect.uStatusCode,
pAPConnection->bNonRoamingDisAssocReason));
/* Check if an outside reason caused the disconnection. */
if (pAPConnection->bNonRoamingDisAssocReason)
{
pAPConnection->bNonRoamingDisAssocReason = FALSE;
smeSm_reportConnStatus(pAPConnection->hSme, STATUS_UNSPECIFIED, 0);
}
/* DisAssociation happened due to roaming trigger */
else if (pAPConnection->roamReason == ROAMING_TRIGGER_AP_DISCONNECT)
{ /* AP disconnect is a special case of the status delivered to SME */
mgmtStatus_e mgmtStatus = ( pAPConnection->APDisconnect.bDeAuthenticate ? STATUS_AP_DEAUTHENTICATE : STATUS_AP_DISASSOCIATE );
smeSm_reportConnStatus(pAPConnection->hSme, mgmtStatus, pAPConnection->APDisconnect.uStatusCode);
}
else /* Finally, just send the last roaming trigger */
{
smeSm_reportConnStatus(pAPConnection->hSme, STATUS_ROAMING_TRIGGER, (UINT32)pAPConnection->roamReason);
}
}