1 /*
2 * apConn.c
3 *
4 * Copyright(c) 1998 - 2009 Texas Instruments. All rights reserved.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * * Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * * Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
16 * distribution.
17 * * Neither the name Texas Instruments nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
24 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
25 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 */
33
34 /** \file apConn.c
35 * \brief AP Connection
36 *
37 * \see apConn.h
38 */
39
40 /****************************************************************************
41 * *
42 * MODULE: AP Connection *
43 * PURPOSE: *
44 * Roaming ability of eSTA is implemented by Roaming Manager Component and
45 * described in "Roaming Manager module LLD" document, and by
46 * AP Connection module. AP Connection module implemented as two sub-modules:
47 * The major one is AP Connection, that is responsible for:
48 * - providing Roaming Manager with access to other parts of WLAN Driver,
49 * - implementing low levels of roaming mechanism.
50 * Current BSS sub-module takes care of:
51 * - maintaining database of current AP info,
52 * - providing access to database of current AP info.
53 * *
54 ****************************************************************************/
55
56 #define __FILE_ID__ FILE_ID_21
57 #include "osApi.h"
58 #include "report.h"
59 #include "sme.h"
60 #include "siteMgrApi.h"
61 #include "smeApi.h"
62 #include "PowerMgr_API.h"
63 #include "TrafficMonitorAPI.h"
64 #include "qosMngr_API.h"
65 #ifdef XCC_MODULE_INCLUDED
66 #include "XCCMngr.h"
67 #endif
68 #include "measurementMgrApi.h"
69 #include "connApi.h"
70 #include "EvHandler.h"
71 #include "apConn.h"
72 #include "currBss.h"
73 #include "fsm.h"
74 #include "scrApi.h"
75 #include "regulatoryDomainApi.h"
76 #include "TWDriver.h"
77 #include "DrvMainModules.h"
78
79
80 /*----------------------*/
81 /* Constants and macros */
82 /*----------------------*/
83
84 #ifdef TI_DBG
85 #define AP_CONN_VALIDATE_HANDLE(hAPConnection) \
86 if (hAPConnection == NULL) \
87 { \
88 WLAN_OS_REPORT(("FATAL ERROR: AP Connection context is not initiated\n")); \
89 return TI_NOK; \
90 }
91 #else
92 #define AP_CONN_VALIDATE_HANDLE(hAPConnection)
93 #endif
94
95 #define MAX_ROAMING_TRIGGERS ROAMING_TRIGGER_LAST
96
97 #define UPDATE_SEND_DEAUTH_PACKET_FLAG(roamingEventType) \
98 if ((roamingEventType >= ROAMING_TRIGGER_MAX_TX_RETRIES) && \
99 (roamingEventType != ROAMING_TRIGGER_SECURITY_ATTACK)) \
100 { \
101 pAPConnection->sendDeauthPacket = TI_FALSE; \
102 }
103
104 /* Init bits */
105
106
107 /*--------------*/
108 /* Enumerations */
109 /*--------------*/
110
111 /**
112 * AP Connection state machine states
113 */
114 typedef enum
115 {
116 AP_CONNECT_STATE_IDLE = 0, /**< Initial state */
117 AP_CONNECT_STATE_WAIT_ROAM, /**< Connected to AP, waiting for start roaming command */
118 AP_CONNECT_STATE_SWITCHING_CHANNEL, /**< Connected to AP, switch channel in progress */
119 AP_CONNECT_STATE_WAIT_CONNECT_CMD, /**< SCR allocated, PS mode entered; wait for cmd from Roam Mngr */
120 AP_CONNECT_STATE_PREPARE_HAND_OFF, /**< Request CCKM for new AP, wait for response */
121 AP_CONNECT_STATE_CONNECTING, /**< Performing Connection to new AP; wait for response from Conn SM */
122 AP_CONNECT_STATE_DISCONNECTING, /**< Wait for completion of current link disconnection */
123 AP_CONNECT_STATE_REESTABLISH_VOICE, /**< Wait for completion of voice TSPEC re-negotiation */
124 AP_CONNECT_STATE_LAST
125 } apConn_smStates;
126
127
128 /**
129 * AP Connection state machine events
130 */
131 typedef enum
132 {
133 AP_CONNECT_EVENT_PREPARE_FOR_ROAMING= 0,/**< Sent by Roam MNGR when roaming event occurs */
134 AP_CONNECT_EVENT_FINISHED_OK, /**< Indicates successful completion of request sent to Conn SM */
135 AP_CONNECT_EVENT_FINISHED_NOT_OK, /**< Indicates unsuccessful completion of request sent to Conn SM */
136 AP_CONNECT_EVENT_RETAIN_CURRENT_AP, /**< Sent by Roam MNGR when it wishes to give-up roaming */
137 AP_CONNECT_EVENT_START, /**< Sent by SME when first time link to AP is established */
138 AP_CONNECT_EVENT_START_ROAM, /**< Sent by Roam MNGR when it wishes to roam to new AP */
139 AP_CONNECT_EVENT_START_SWITCH_CHANNEL, /**< Sent by Switch channel module when starting switch channel process (tx enabled) */
140 AP_CONNECT_EVENT_FINISHED_SWITCH_CH, /**< Sent by Switch channel module when finishing switch channel process (tx enabled) */
141 AP_CONNECT_EVENT_FINISHED_HAND_OVER, /**< Sent by XCC module when finishing hand-over */
142 AP_CONNECT_EVENT_STOP, /**< Disconnect current link, send stop indication to other modules */
143 AP_CONNECT_EVENT_LAST
144 } apConn_smEvents;
145
146 #define AP_CONNECT_NUM_STATES AP_CONNECT_STATE_LAST
147 #define AP_CONNECT_NUM_EVENTS AP_CONNECT_EVENT_LAST
148
149
150 /*----------*/
151 /* Typedefs */
152 /*----------*/
153
154 /*------------*/
155 /* Structures */
156 /*------------*/
157
158 /**
159 * AP Connection control block
160 * Following structure defines parameters that can be configured externally,
161 * internal variables, AP Connection state machine and handlers of other modules
162 * used by AP Connection module
163 */
164 typedef struct _apConn_t
165 {
166 /* AP Connection state machine */
167 fsm_stateMachine_t *apConnSM; /**< AP Connection module state machine */
168 TI_UINT8 currentState; /**< AP Connection state machine current state */
169
170 /* Internal parameters */
171 TI_BOOL firstAttempt2Roam; /**< TI_TRUE if still connected to original AP, TI_FALSE otherwise */
172 TI_BOOL roamingEnabled; /**< If TI_FALSE, act like if no roaming callback registered. */
173 apConn_roamingTrigger_e roamReason; /**< The most severe and recent reason for roaming */
174 APDisconnect_t APDisconnect; /**< The AP disconnect trigger extra information */
175 bssEntry_t *newAP; /**< Stores parameters of roaming candidate */
176 apConn_connRequest_e requestType; /**< Stores type of roaming request */
177 TI_INT8 rssiThreshold; /**< Stores recently configured RSSI threshold */
178 TI_UINT8 snrThreshold; /**< Stores recently configured SNR threshold */
179 TI_UINT8 txFailureThreshold; /**< Stores recently configured consec. no ack threshold */
180 TI_UINT8 lowRateThreshold; /**< Stores recently configured consec. no ack threshold */
181 TI_UINT32 vsIElength; /**< Length of vendor specific info-element for assoc req (if defined) */
182 char *vsIEbuf; /**< Pointer to vendor specific info-element for assoc req (if defined) */
183 TI_BOOL isRssiTriggerMaskedOut;
184 TI_BOOL isSnrTriggerMaskedOut;
185 TI_BOOL isConsTxFailureMaskedOut;
186 TI_BOOL islowRateTriggerMaskedOut;
187 TI_BOOL removeKeys; /**< Indicates whether keys should be removed after disconnect or not */
188 TI_BOOL ignoreDeauthReason0;/**< Indicates whether to ignore DeAuth with reason 0, required for Rogue AP test XCC-V2 */
189 TI_BOOL sendDeauthPacket; /**< Indicates whether to send DEAUTH packet when discommecting or not */
190 TI_UINT8 deauthPacketReasonCode; /**< Indicates what error code to indicate in the DEAUTH packet */
191 TI_BOOL voiceTspecConfigured;/**< Shall be set to TI_TRUE before roaming in case the TSPEC is configured */
192 TI_BOOL videoTspecConfigured;/**< Shall be set to TRUE before roaming in case the TSPEC is configured */
193 TI_BOOL reNegotiateTSPEC; /**< Shall be set to TI_TRUE before hand-over if requested by Roaming Manager */
194 TI_BOOL resetReportedRoamingStatistics; /**< Shall be set to TI_TRUE if starting to measure traffic */
195 TI_UINT16 lastRoamingDelay;
196 TI_UINT32 roamingStartedTimestamp;
197 TI_UINT8 roamingSuccesfulHandoverNum;
198 TI_BOOL bNonRoamingDisAssocReason; /**< Indicate whether last disconnection was called from outside (SME) */
199
200 /** Callback functions, registered by Roaming manager */
201 apConn_roamMngrEventCallb_t roamEventCallb; /**< roam event triggers */
202 apConn_roamMngrCallb_t reportStatusCallb; /**< connection status events */
203 apConn_roamMngrCallb_t returnNeighborApsCallb; /**< neighbor APs list update */
204
205 /* Handlers of other modules used by AP Connection */
206 TI_HANDLE hOs;
207 TI_HANDLE hReport;
208 TI_HANDLE hCurrBSS;
209 TI_HANDLE hRoamMng;
210 TI_HANDLE hSme;
211 TI_HANDLE hSiteMgr;
212 TI_HANDLE hXCCMngr;
213 TI_HANDLE hConnSm;
214 TI_HANDLE hPrivacy;
215 TI_HANDLE hQos;
216 TI_HANDLE hEvHandler;
217 TI_HANDLE hScr;
218 TI_HANDLE hAssoc;
219 TI_HANDLE hRegulatoryDomain;
220 TI_HANDLE hMlme;
221
222 /* Counters for statistics */
223 TI_UINT32 roamingTriggerEvents[MAX_ROAMING_TRIGGERS];
224 TI_UINT32 roamingSuccesfulHandoverTotalNum;
225 TI_UINT32 roamingFailedHandoverNum;
226 TI_UINT32 retainCurrAPNum;
227 TI_UINT32 disconnectFromRoamMngrNum;
228 TI_UINT32 stopFromSmeNum;
229 } apConn_t;
230
231
232 /*-------------------------------*/
233 /* Internal functions prototypes */
234 /*-------------------------------*/
235
236 /* SM functions */
237 static TI_STATUS apConn_smEvent(TI_UINT8 *currState, TI_UINT8 event, void* data);
238 static TI_STATUS apConn_smNop(void *pData);
239 static TI_STATUS apConn_smUnexpected(void *pData);
240 static TI_STATUS apConn_startWaitingForTriggers(void *pData);
241 static TI_STATUS apConn_connectedToNewAP(void *pData);
242 static TI_STATUS apConn_configureDriverBeforeRoaming(void *pData);
243 static TI_STATUS apConn_stopConnection(void *pData);
244 static TI_STATUS apConn_invokeConnectionToNewAp(void *pData);
245 static TI_STATUS apConn_reportDisconnected(void *pData);
246 static TI_STATUS apConn_retainAP(void *pData);
247 static TI_STATUS apConn_requestCCKM(void *pData);
248 static TI_STATUS apConn_reportConnFail(void *pData);
249 static TI_STATUS apConn_swChFinished(void *pData);
250 static TI_STATUS apConn_handleTspecReneg (void *pData);
251
252 /* other functions */
253 #ifdef XCC_MODULE_INCLUDED
254 static void apConn_calcNewTsf(apConn_t *hAPConnection, TI_UINT8 *tsfTimeStamp, TI_UINT32 newSiteOsTimeStamp, TI_UINT32 beaconInterval);
255 #endif
256 static TI_STATUS apConn_qosMngrReportResultCallb (TI_HANDLE hApConn, trafficAdmRequestStatus_e result);
257 static void apConn_reportConnStatusToSME (apConn_t *pAPConnection);
258
259
260 /*-------------------------------*/
261 /* Public functions prototypes */
262 /*-------------------------------*/
263
264 /**
265 *
266 * apConn_create
267 *
268 * \b Description:
269 *
270 * Create the AP Connection context:
271 * allocate memory for internal variables;
272 * create state machine.
273 *
274 * \b ARGS:
275 *
276 * I - hOs - OS handler
277 *
278 * \b RETURNS:
279 *
280 * Pointer to the AP Connection on success, NULL on failure
281 * (unable to allocate memory or other error).
282 *
283 * \sa
284 */
apConn_create(TI_HANDLE hOs)285 TI_HANDLE apConn_create(TI_HANDLE hOs)
286 {
287 TI_STATUS status;
288 apConn_t *pAPConnection;
289
290 if ((pAPConnection = os_memoryAlloc(hOs, sizeof(apConn_t))) != NULL)
291 {
292 pAPConnection->hOs = hOs;
293
294 status = fsm_Create(hOs, &(pAPConnection->apConnSM), AP_CONNECT_NUM_STATES, AP_CONNECT_NUM_EVENTS);
295 if (status == TI_OK)
296 {
297 /* Succeeded to create AP Connection module context - return pointer to it */
298 return pAPConnection;
299 }
300 else /* Failed to create state machine */
301 {
302 WLAN_OS_REPORT(("FATAL ERROR: apConn_create(): Error creating apConnSM - aborting\n"));
303 /* Free pre-allocated control block */
304 os_memoryFree(hOs, pAPConnection, sizeof(apConn_t));
305 return NULL;
306 }
307 }
308 else /* Failed to allocate control block */
309 {
310 WLAN_OS_REPORT(("FATAL ERROR: apConn_create(): Error allocating cb - aborting\n"));
311 return NULL;
312 }
313 }
314
315 /**
316 *
317 * apConn_unload
318 *
319 * \b Description:
320 *
321 * Finish AP Connection module work:
322 * release the allocation for state machine and internal variables.
323 *
324 * \b ARGS:
325 *
326 *
327 * \b RETURNS:
328 *
329 * TI_OK if successful, TI_NOK otherwise.
330 *
331 * \sa
332 */
apConn_unload(TI_HANDLE hAPConnection)333 TI_STATUS apConn_unload(TI_HANDLE hAPConnection)
334 {
335 apConn_t *pAPConnection;
336
337 AP_CONN_VALIDATE_HANDLE (hAPConnection);
338
339 pAPConnection = (apConn_t *)hAPConnection;
340
341 /* Unload state machine */
342 fsm_Unload (pAPConnection->hOs, pAPConnection->apConnSM);
343
344 /* Free pre-allocated control block */
345 os_memoryFree (pAPConnection->hOs, pAPConnection, sizeof(apConn_t));
346
347 return TI_OK;
348 }
349
350 /**
351 *
352 * apConn_init
353 *
354 * \b Description:
355 *
356 * Prepare AP Connection module to work: initiate internal variables, start state machine
357 *
358 * \b ARGS:
359 *
360 * I - pStadHandles - The driver modules handles \n
361 *
362 * \b RETURNS:
363 *
364 * void
365 *
366 * \sa
367 */
apConn_init(TStadHandlesList * pStadHandles)368 void apConn_init (TStadHandlesList *pStadHandles)
369 {
370 apConn_t *pAPConnection = (apConn_t *)(pStadHandles->hAPConnection);
371
372 /** State Machine matrix */
373 static fsm_actionCell_t apConn_matrix[AP_CONNECT_NUM_STATES][AP_CONNECT_NUM_EVENTS] =
374 {
375 /* next state and actions for IDLE state */
376 { {AP_CONNECT_STATE_IDLE, apConn_smUnexpected}, /* PREPARE_FOR_ROAMING */
377 {AP_CONNECT_STATE_IDLE, apConn_smUnexpected}, /* FINISHED_OK */
378 {AP_CONNECT_STATE_IDLE, apConn_smUnexpected}, /* FINISHED_NOT_OK */
379 {AP_CONNECT_STATE_IDLE, apConn_smUnexpected}, /* RETAIN_CURRENT_AP */
380 {AP_CONNECT_STATE_WAIT_ROAM,apConn_startWaitingForTriggers},/* START */
381 {AP_CONNECT_STATE_IDLE, apConn_smUnexpected}, /* START_ROAM */
382 {AP_CONNECT_STATE_IDLE, apConn_smUnexpected}, /* START_SWITCH_CHANNEL */
383 {AP_CONNECT_STATE_IDLE, apConn_smNop}, /* FINISHED_SWITCH_CH */
384 {AP_CONNECT_STATE_IDLE, apConn_smNop}, /* FINISHED_HAND_OVER */
385 {AP_CONNECT_STATE_IDLE, apConn_smUnexpected} /* STOP */
386 },
387 /* next state and actions for WAIT_ROAM state */
388 { {AP_CONNECT_STATE_WAIT_CONNECT_CMD,apConn_configureDriverBeforeRoaming},/* PREPARE_FOR_ROAMING */
389 {AP_CONNECT_STATE_WAIT_ROAM, apConn_smUnexpected}, /* FINISHED_OK */
390 {AP_CONNECT_STATE_WAIT_ROAM, apConn_smUnexpected}, /* FINISHED_NOT_OK */
391 {AP_CONNECT_STATE_WAIT_ROAM, apConn_smUnexpected}, /* RETAIN_CURRENT_AP */
392 {AP_CONNECT_STATE_WAIT_ROAM, apConn_smUnexpected}, /* START */
393 {AP_CONNECT_STATE_WAIT_ROAM, apConn_smUnexpected}, /* START_ROAM */
394 {AP_CONNECT_STATE_SWITCHING_CHANNEL, apConn_smNop}, /* START_SWITCH_CHANNEL */
395 {AP_CONNECT_STATE_WAIT_ROAM, apConn_smUnexpected}, /* FINISHED_SWITCH_CH */
396 {AP_CONNECT_STATE_WAIT_ROAM, apConn_smUnexpected}, /* FINISHED_HAND_OVER */
397 {AP_CONNECT_STATE_DISCONNECTING, apConn_stopConnection} /* STOP */
398 },
399 /* next state and actions for SWITCHING_CHANNEL state */
400 { {AP_CONNECT_STATE_SWITCHING_CHANNEL, apConn_smUnexpected}, /* PREPARE_FOR_ROAMING */
401 {AP_CONNECT_STATE_SWITCHING_CHANNEL, apConn_smUnexpected}, /* FINISHED_OK */
402 {AP_CONNECT_STATE_SWITCHING_CHANNEL, apConn_smUnexpected}, /* FINISHED_NOT_OK */
403 {AP_CONNECT_STATE_SWITCHING_CHANNEL, apConn_smUnexpected}, /* RETAIN_CURRENT_AP */
404 {AP_CONNECT_STATE_SWITCHING_CHANNEL, apConn_smUnexpected}, /* START */
405 {AP_CONNECT_STATE_SWITCHING_CHANNEL, apConn_smUnexpected}, /* START_ROAM */
406 {AP_CONNECT_STATE_SWITCHING_CHANNEL, apConn_swChFinished}, /* START_SWITCH_CHANNEL */
407 {AP_CONNECT_STATE_WAIT_ROAM, apConn_smNop}, /* FINISHED_SWITCH_CH */
408 {AP_CONNECT_STATE_SWITCHING_CHANNEL, apConn_smUnexpected}, /* FINISHED_HAND_OVER */
409 {AP_CONNECT_STATE_DISCONNECTING, apConn_stopConnection} /* STOP */
410 },
411 /* next state and actions for WAIT_CONNECT_CMD state */
412 { {AP_CONNECT_STATE_WAIT_CONNECT_CMD, apConn_smUnexpected}, /* PREPARE_FOR_ROAMING */
413 {AP_CONNECT_STATE_WAIT_CONNECT_CMD, apConn_smUnexpected}, /* FINISHED_OK */
414 {AP_CONNECT_STATE_WAIT_CONNECT_CMD, apConn_smUnexpected}, /* FINISHED_NOT_OK */
415 {AP_CONNECT_STATE_WAIT_ROAM, apConn_retainAP}, /* RETAIN_CURRENT_AP */
416 {AP_CONNECT_STATE_WAIT_CONNECT_CMD, apConn_smUnexpected}, /* START */
417 {AP_CONNECT_STATE_PREPARE_HAND_OFF, apConn_requestCCKM}, /* START_ROAM */
418 {AP_CONNECT_STATE_WAIT_CONNECT_CMD, apConn_smUnexpected}, /* START_SWITCH_CHANNEL */
419 {AP_CONNECT_STATE_WAIT_CONNECT_CMD, apConn_smUnexpected}, /* FINISHED_SWITCH_CH */
420 {AP_CONNECT_STATE_WAIT_CONNECT_CMD, apConn_smUnexpected}, /* FINISHED_HAND_OVER */
421 {AP_CONNECT_STATE_DISCONNECTING, apConn_stopConnection} /* STOP */
422 },
423 /* next state and actions for PREPARE_HAND_OFF state */
424 { {AP_CONNECT_STATE_PREPARE_HAND_OFF, apConn_smUnexpected}, /* PREPARE_FOR_ROAMING */
425 {AP_CONNECT_STATE_PREPARE_HAND_OFF, apConn_smUnexpected}, /* FINISHED_OK */
426 {AP_CONNECT_STATE_PREPARE_HAND_OFF, apConn_smUnexpected}, /* FINISHED_NOT_OK */
427 {AP_CONNECT_STATE_PREPARE_HAND_OFF, apConn_smUnexpected}, /* RETAIN_CURRENT_AP */
428 {AP_CONNECT_STATE_PREPARE_HAND_OFF, apConn_smUnexpected}, /* START */
429 {AP_CONNECT_STATE_PREPARE_HAND_OFF, apConn_smUnexpected}, /* START_ROAM */
430 {AP_CONNECT_STATE_PREPARE_HAND_OFF, apConn_smUnexpected}, /* START_SWITCH_CHANNEL */
431 {AP_CONNECT_STATE_PREPARE_HAND_OFF, apConn_smUnexpected}, /* FINISHED_SWITCH_CH */
432 {AP_CONNECT_STATE_CONNECTING, apConn_invokeConnectionToNewAp},/* FINISHED_HAND_OVER */
433 {AP_CONNECT_STATE_DISCONNECTING, apConn_stopConnection} /* STOP */
434 },
435 /* next state and actions for CONNECTING state */
436 { {AP_CONNECT_STATE_CONNECTING, apConn_smUnexpected}, /* PREPARE_FOR_ROAMING */
437 {AP_CONNECT_STATE_REESTABLISH_VOICE,apConn_handleTspecReneg},/* FINISHED_OK */
438 {AP_CONNECT_STATE_WAIT_CONNECT_CMD, apConn_reportConnFail}, /* FINISHED_NOT_OK */
439 {AP_CONNECT_STATE_CONNECTING, apConn_smUnexpected}, /* RETAIN_CURRENT_AP */
440 {AP_CONNECT_STATE_CONNECTING, apConn_smUnexpected}, /* START */
441 {AP_CONNECT_STATE_CONNECTING, apConn_smUnexpected}, /* START_ROAM */
442 {AP_CONNECT_STATE_CONNECTING, apConn_smUnexpected}, /* START_SWITCH_CHANNEL */
443 {AP_CONNECT_STATE_CONNECTING, apConn_smUnexpected}, /* FINISHED_SWITCH_CH */
444 {AP_CONNECT_STATE_CONNECTING, apConn_smUnexpected}, /* FINISHED_HAND_OVER */
445 {AP_CONNECT_STATE_DISCONNECTING, apConn_stopConnection} /* STOP */
446 },
447 /* next state and actions for DISCONNECTING state */
448 { {AP_CONNECT_STATE_DISCONNECTING, apConn_smNop}, /* PREPARE_FOR_ROAMING */
449 {AP_CONNECT_STATE_IDLE, apConn_reportDisconnected}, /* FINISHED_OK */
450 {AP_CONNECT_STATE_IDLE, apConn_reportDisconnected}, /* FINISHED_NOT_OK */
451 {AP_CONNECT_STATE_DISCONNECTING, apConn_smNop}, /* RETAIN_CURRENT_AP */
452 {AP_CONNECT_STATE_DISCONNECTING, apConn_smUnexpected}, /* START */
453 {AP_CONNECT_STATE_DISCONNECTING, apConn_smNop}, /* START_ROAM */
454 {AP_CONNECT_STATE_DISCONNECTING, apConn_smNop}, /* START_SWITCH_CHANNEL */
455 {AP_CONNECT_STATE_DISCONNECTING, apConn_smNop}, /* FINISHED_SWITCH_CH */
456 {AP_CONNECT_STATE_DISCONNECTING, apConn_smNop}, /* FINISHED_HAND_OVER */
457 {AP_CONNECT_STATE_DISCONNECTING, apConn_smNop}, /* STOP */
458 },
459 /* next state and actions for REESTABLISH_VOICE state */
460 { {AP_CONNECT_STATE_REESTABLISH_VOICE, apConn_smUnexpected}, /* PREPARE_FOR_ROAMING */
461 {AP_CONNECT_STATE_WAIT_ROAM,apConn_connectedToNewAP}, /* FINISHED_OK */
462 {AP_CONNECT_STATE_WAIT_CONNECT_CMD, apConn_reportConnFail}, /* FINISHED_NOT_OK */
463 {AP_CONNECT_STATE_REESTABLISH_VOICE, apConn_smUnexpected}, /* RETAIN_CURRENT_AP */
464 {AP_CONNECT_STATE_REESTABLISH_VOICE, apConn_smUnexpected}, /* START */
465 {AP_CONNECT_STATE_REESTABLISH_VOICE, apConn_smUnexpected}, /* START_ROAM */
466 {AP_CONNECT_STATE_REESTABLISH_VOICE, apConn_smUnexpected}, /* START_SWITCH_CHANNEL */
467 {AP_CONNECT_STATE_REESTABLISH_VOICE, apConn_smUnexpected}, /* FINISHED_SWITCH_CH */
468 {AP_CONNECT_STATE_REESTABLISH_VOICE, apConn_smUnexpected}, /* FINISHED_HAND_OVER */
469 {AP_CONNECT_STATE_DISCONNECTING, apConn_stopConnection} /* STOP */
470 }
471 };
472
473 fsm_Config(pAPConnection->apConnSM,
474 (fsm_Matrix_t)&apConn_matrix[0][0],
475 AP_CONNECT_NUM_STATES,
476 AP_CONNECT_NUM_EVENTS,
477 (fsm_eventActivation_t)apConn_smEvent,
478 pAPConnection->hOs);
479
480 pAPConnection->hReport = pStadHandles->hReport;
481 pAPConnection->hCurrBSS = pStadHandles->hCurrBss;
482 pAPConnection->hRoamMng = pStadHandles->hRoamingMngr;
483 pAPConnection->hSme = pStadHandles->hSme;
484 pAPConnection->hSiteMgr = pStadHandles->hSiteMgr;
485 pAPConnection->hXCCMngr = pStadHandles->hXCCMngr;
486 pAPConnection->hConnSm = pStadHandles->hConn;
487 pAPConnection->hPrivacy = pStadHandles->hRsn;
488 pAPConnection->hQos = pStadHandles->hQosMngr;
489 pAPConnection->hEvHandler = pStadHandles->hEvHandler;
490 pAPConnection->hScr = pStadHandles->hSCR;
491 pAPConnection->hAssoc = pStadHandles->hAssoc;
492 pAPConnection->hMlme = pStadHandles->hMlmeSm;
493 pAPConnection->hRegulatoryDomain = pStadHandles->hRegulatoryDomain;
494
495 pAPConnection->currentState = AP_CONNECT_STATE_IDLE;
496 pAPConnection->firstAttempt2Roam = TI_TRUE;
497 pAPConnection->roamingEnabled = TI_TRUE;
498 pAPConnection->reportStatusCallb = NULL;
499 pAPConnection->roamEventCallb = NULL;
500 pAPConnection->returnNeighborApsCallb = NULL;
501 }
502
503
apConn_SetDefaults(TI_HANDLE hAPConnection,apConnParams_t * pApConnParams)504 TI_STATUS apConn_SetDefaults (TI_HANDLE hAPConnection, apConnParams_t *pApConnParams)
505 {
506 apConn_t *pAPConnection = (apConn_t *)hAPConnection;
507 TI_UINT32 index;
508
509 pAPConnection->ignoreDeauthReason0 = pApConnParams->ignoreDeauthReason0;
510
511 for (index=ROAMING_TRIGGER_NONE; index<ROAMING_TRIGGER_LAST; index++)
512 {
513 pAPConnection->roamingTriggerEvents[index] = 0;
514 }
515 pAPConnection->roamingSuccesfulHandoverNum = 0;
516 pAPConnection->roamingSuccesfulHandoverTotalNum = 0;
517 pAPConnection->roamingFailedHandoverNum = 0;
518 pAPConnection->retainCurrAPNum = 0;
519 pAPConnection->disconnectFromRoamMngrNum = 0;
520 pAPConnection->stopFromSmeNum = 0;
521 pAPConnection->txFailureThreshold = NO_ACK_DEFAULT_THRESHOLD;
522 pAPConnection->lowRateThreshold = LOW_RATE_DEFAULT_THRESHOLD;
523 pAPConnection->rssiThreshold = RSSI_DEFAULT_THRESHOLD;
524 pAPConnection->snrThreshold = SNR_DEFAULT_THRESHOLD;
525 pAPConnection->vsIElength = 0;
526 pAPConnection->isRssiTriggerMaskedOut = TI_FALSE;
527 pAPConnection->isSnrTriggerMaskedOut = TI_TRUE;
528 pAPConnection->islowRateTriggerMaskedOut = TI_FALSE;
529 pAPConnection->isConsTxFailureMaskedOut = TI_FALSE;
530 pAPConnection->removeKeys = TI_TRUE;
531 pAPConnection->sendDeauthPacket = TI_TRUE; /* Default behavior is radio On - send DISASSOC frame */
532 pAPConnection->deauthPacketReasonCode = STATUS_UNSPECIFIED;
533 pAPConnection->voiceTspecConfigured = TI_FALSE;
534 pAPConnection->videoTspecConfigured = TI_FALSE;
535 pAPConnection->resetReportedRoamingStatistics = TI_FALSE;
536 pAPConnection->reNegotiateTSPEC = TI_FALSE;
537 pAPConnection->bNonRoamingDisAssocReason = TI_FALSE;
538
539 pAPConnection->roamingStartedTimestamp = 0;
540 pAPConnection->lastRoamingDelay = 0;
541 pAPConnection->roamingSuccesfulHandoverNum = 0;
542
543 return TI_OK;
544 }
545
546
547 /* apConn_isPsRequiredBeforeScan
548 *
549 * \b Description:
550 *
551 * verify if the PS required before scan according if roaming triger is part of ROAMING_TRIGGER_LOW_QUALITY_GROUP
552 *
553 * \b ARGS:
554 *
555 * I - hAPConnection - pointer to module\n
556 *
557 * \b RETURNS:
558 *
559 * TRUE or FALSE.
560 *
561 * \sa
562 */
apConn_isPsRequiredBeforeScan(TI_HANDLE hAPConnection)563 TI_BOOL apConn_isPsRequiredBeforeScan(TI_HANDLE hAPConnection)
564 {
565 apConn_t * pAPConnection = (apConn_t *) hAPConnection;
566
567 /* check if part of ROAMING_TRIGGER_LOW_QUALITY_GROUP */
568 if (pAPConnection->roamReason <= ROAMING_TRIGGER_MAX_TX_RETRIES)
569 return TI_TRUE;
570 else
571 return TI_FALSE;
572 }
573
574
575
576 /**
577 *
578 * apConn_ConnCompleteInd
579 *
580 * \b Description:
581 *
582 * Inform AP Connection about successful / unsuccessful completion
583 * of link establishing
584 *
585 * \b ARGS:
586 *
587 * I - result - TI_OK if successfully connected, TI_NOK otherwise \n
588 *
589 * \b RETURNS:
590 *
591 * None.
592 *
593 * \sa
594 */
apConn_ConnCompleteInd(TI_HANDLE hAPConnection,mgmtStatus_e status,TI_UINT32 uStatusCode)595 void apConn_ConnCompleteInd(TI_HANDLE hAPConnection, mgmtStatus_e status, TI_UINT32 uStatusCode)
596 {
597 apConn_t *pAPConnection = (apConn_t *)hAPConnection;
598
599 if (status == STATUS_SUCCESSFUL)
600 {
601 apConn_smEvent(&(pAPConnection->currentState), AP_CONNECT_EVENT_FINISHED_OK, pAPConnection);
602 }
603 else
604 {
605 apConn_smEvent(&(pAPConnection->currentState), AP_CONNECT_EVENT_FINISHED_NOT_OK, pAPConnection);
606 }
607 }
608
apConn_getRoamThresholds(TI_HANDLE hAPConnection,roamingMngrThresholdsConfig_t * pParam)609 TI_STATUS apConn_getRoamThresholds(TI_HANDLE hAPConnection, roamingMngrThresholdsConfig_t *pParam)
610 {
611 apConn_t * pAPConnection = (apConn_t *) hAPConnection;
612
613 pParam->lowRssiThreshold = pAPConnection->rssiThreshold;
614 pParam->lowSnrThreshold = pAPConnection->snrThreshold;
615 pParam->txRateThreshold = pAPConnection->lowRateThreshold;
616 pParam->dataRetryThreshold = pAPConnection->txFailureThreshold;
617
618 currBSS_getRoamingParams(pAPConnection->hCurrBSS,
619 &pParam->numExpectedTbttForBSSLoss,
620 &pParam->lowQualityForBackgroungScanCondition,
621 &pParam->normalQualityForBackgroungScanCondition);
622
623 return TI_OK;
624 }
625
apConn_setRoamThresholds(TI_HANDLE hAPConnection,roamingMngrThresholdsConfig_t * pParam)626 TI_STATUS apConn_setRoamThresholds(TI_HANDLE hAPConnection, roamingMngrThresholdsConfig_t *pParam)
627 {
628 apConn_t *pAPConnection = (apConn_t *)hAPConnection;
629
630 AP_CONN_VALIDATE_HANDLE(hAPConnection);
631
632 /* If low quality trigger threshold is set to 0 - this is the request to ignore this trigger */
633 /* Otherwise store it */
634 if (pParam->lowRssiThreshold == (TI_INT8)AP_CONNECT_TRIGGER_IGNORED)
635 {
636 pAPConnection->isRssiTriggerMaskedOut = TI_TRUE;
637 pParam->lowRssiThreshold = pAPConnection->rssiThreshold;
638 }
639 else
640 {
641 pAPConnection->isRssiTriggerMaskedOut = TI_FALSE;
642 pAPConnection->rssiThreshold = pParam->lowRssiThreshold;
643 }
644
645 if (pParam->txRateThreshold == AP_CONNECT_TRIGGER_IGNORED)
646 {
647 pAPConnection->islowRateTriggerMaskedOut = TI_TRUE;
648 pParam->txRateThreshold = pAPConnection->lowRateThreshold;
649 }
650 else
651 {
652 pAPConnection->islowRateTriggerMaskedOut = TI_FALSE;
653 pAPConnection->lowRateThreshold = pParam->txRateThreshold;
654 }
655
656 if (pParam->dataRetryThreshold == AP_CONNECT_TRIGGER_IGNORED)
657 {
658 pAPConnection->isConsTxFailureMaskedOut = TI_TRUE;
659 pParam->dataRetryThreshold = pAPConnection->txFailureThreshold;
660 }
661 else
662 {
663 pAPConnection->isConsTxFailureMaskedOut = TI_FALSE;
664 pAPConnection->txFailureThreshold = pParam->dataRetryThreshold;
665 }
666
667 pAPConnection->isSnrTriggerMaskedOut = TI_FALSE;
668 pAPConnection->snrThreshold = pParam->lowSnrThreshold;
669
670 currBSS_updateRoamingTriggers(pAPConnection->hCurrBSS, pParam);
671
672 return TI_OK;
673 }
674
apConn_registerRoamMngrCallb(TI_HANDLE hAPConnection,apConn_roamMngrEventCallb_t roamEventCallb,apConn_roamMngrCallb_t reportStatusCallb,apConn_roamMngrCallb_t returnNeighborApsCallb)675 TI_STATUS apConn_registerRoamMngrCallb(TI_HANDLE hAPConnection,
676 apConn_roamMngrEventCallb_t roamEventCallb,
677 apConn_roamMngrCallb_t reportStatusCallb,
678 apConn_roamMngrCallb_t returnNeighborApsCallb)
679 {
680 apConn_t *pAPConnection;
681 apConn_connStatus_t reportStatus;
682 paramInfo_t param;
683
684 AP_CONN_VALIDATE_HANDLE(hAPConnection);
685
686 pAPConnection = (apConn_t *)hAPConnection;
687
688 pAPConnection->roamEventCallb = roamEventCallb;
689 pAPConnection->reportStatusCallb = reportStatusCallb;
690 if ((pAPConnection->roamingEnabled) && (pAPConnection->currentState != AP_CONNECT_STATE_IDLE))
691 {
692 param.paramType = ASSOC_ASSOCIATION_REQ_PARAM;
693
694 assoc_getParam(pAPConnection->hAssoc, ¶m);
695 reportStatus.dataBuf = (char *)(param.content.assocReqBuffer.buffer);
696 reportStatus.dataBufLength = param.content.assocReqBuffer.bufferSize;
697
698 reportStatus.status = CONN_STATUS_CONNECTED;
699 reportStatusCallb(pAPConnection->hRoamMng, &reportStatus);
700 }
701 ((apConn_t *)hAPConnection)->returnNeighborApsCallb = returnNeighborApsCallb;
702
703 return TI_OK;
704 }
705
apConn_unregisterRoamMngrCallb(TI_HANDLE hAPConnection)706 TI_STATUS apConn_unregisterRoamMngrCallb(TI_HANDLE hAPConnection)
707 {
708 apConn_t *pAPConnection;
709
710 AP_CONN_VALIDATE_HANDLE(hAPConnection);
711
712 pAPConnection = (apConn_t *)hAPConnection;
713
714 pAPConnection->roamEventCallb = NULL;
715 pAPConnection->reportStatusCallb = NULL;
716 pAPConnection->returnNeighborApsCallb = NULL;
717
718 if ((pAPConnection->currentState != AP_CONNECT_STATE_IDLE) && (pAPConnection->currentState != AP_CONNECT_STATE_WAIT_ROAM))
719 {
720 /* Roaming Manager is unregistering it's callbacks in the middle of roaming - disconnect */
721 apConn_smEvent(&(pAPConnection->currentState), AP_CONNECT_EVENT_STOP, pAPConnection);
722 }
723 return TI_OK;
724 }
725
apConn_disconnect(TI_HANDLE hAPConnection)726 TI_STATUS apConn_disconnect(TI_HANDLE hAPConnection)
727 {
728 apConn_t *pAPConnection;
729
730 AP_CONN_VALIDATE_HANDLE(hAPConnection);
731
732 pAPConnection = (apConn_t *)hAPConnection;
733 UPDATE_SEND_DEAUTH_PACKET_FLAG(pAPConnection->roamReason);
734 if (pAPConnection->roamReason == ROAMING_TRIGGER_SECURITY_ATTACK)
735 pAPConnection->deauthPacketReasonCode = STATUS_MIC_FAILURE;
736 else
737 pAPConnection->deauthPacketReasonCode = STATUS_UNSPECIFIED;
738 apConn_smEvent(&(pAPConnection->currentState), AP_CONNECT_EVENT_STOP, pAPConnection);
739 pAPConnection->disconnectFromRoamMngrNum++;
740
741 return TI_OK;
742 }
743
apConn_getStaCapabilities(TI_HANDLE hAPConnection,apConn_staCapabilities_t * ie_list)744 TI_STATUS apConn_getStaCapabilities(TI_HANDLE hAPConnection,
745 apConn_staCapabilities_t *ie_list)
746 {
747 apConn_t *pAPConnection = (apConn_t *)hAPConnection;
748 apConn_staCapabilities_t *pList;
749 paramInfo_t param;
750
751 AP_CONN_VALIDATE_HANDLE(hAPConnection);
752
753 pList = ie_list;
754
755 /* Get authentication suite type */
756 param.paramType = RSN_EXT_AUTHENTICATION_MODE;
757 rsn_getParam(pAPConnection->hPrivacy, ¶m);
758
759 switch (param.content.rsnExtAuthneticationMode)
760 {
761 case RSN_EXT_AUTH_MODE_OPEN:
762 pList->authMode = os802_11AuthModeOpen;
763 break;
764 case RSN_EXT_AUTH_MODE_SHARED_KEY:
765 pList->authMode = os802_11AuthModeShared;
766 break;
767 case RSN_EXT_AUTH_MODE_AUTO_SWITCH:
768 pList->authMode = os802_11AuthModeAutoSwitch;
769 break;
770 case RSN_EXT_AUTH_MODE_WPA:
771 pList->authMode = os802_11AuthModeWPA;
772 break;
773 case RSN_EXT_AUTH_MODE_WPAPSK:
774 pList->authMode = os802_11AuthModeWPAPSK;
775 break;
776 case RSN_EXT_AUTH_MODE_WPANONE:
777 pList->authMode = os802_11AuthModeWPANone;
778 break;
779 case RSN_EXT_AUTH_MODE_WPA2:
780 pList->authMode = os802_11AuthModeWPA2;
781 break;
782 case RSN_EXT_AUTH_MODE_WPA2PSK:
783 pList->authMode = os802_11AuthModeWPA2PSK;
784 break;
785 default:
786 pList->authMode = os802_11AuthModeOpen;
787 break;
788 }
789
790 /* Get encryption type */
791 param.paramType = RSN_ENCRYPTION_STATUS_PARAM;
792 rsn_getParam(pAPConnection->hPrivacy, ¶m);
793
794 switch (param.content.rsnEncryptionStatus)
795 {
796 case TWD_CIPHER_NONE:
797 pList->encryptionType = OS_ENCRYPTION_TYPE_NONE;
798 break;
799 case TWD_CIPHER_WEP:
800 case TWD_CIPHER_WEP104:
801 pList->encryptionType = OS_ENCRYPTION_TYPE_WEP;
802 break;
803 case TWD_CIPHER_TKIP:
804 case TWD_CIPHER_CKIP:
805 pList->encryptionType = OS_ENCRYPTION_TYPE_TKIP;
806 break;
807 case TWD_CIPHER_AES_WRAP:
808 case TWD_CIPHER_AES_CCMP:
809 pList->encryptionType = OS_ENCRYPTION_TYPE_AES;
810 break;
811 default:
812 pList->encryptionType = OS_ENCRYPTION_TYPE_NONE;
813 break;
814 }
815
816 /* Get supported rates */
817 param.paramType = SITE_MGR_DESIRED_SUPPORTED_RATE_SET_PARAM;
818 siteMgr_getParam(pAPConnection->hSiteMgr, ¶m);
819 os_memoryCopy(pAPConnection->hOs, (void *)param.content.siteMgrDesiredSupportedRateSet.ratesString, pList->rateMask, sizeof(OS_802_11_RATES_EX));
820
821 /* Get mode: 2.4G, 5G or Dual */
822 param.paramType = SITE_MGR_DESIRED_DOT11_MODE_PARAM;
823 siteMgr_getParam(pAPConnection->hSiteMgr, ¶m);
824 pList->networkType = (OS_802_11_NETWORK_TYPE)param.content.siteMgrDot11Mode;
825 switch(param.content.siteMgrDot11Mode)
826 {
827 case DOT11_B_MODE:
828 pList->networkType = os802_11DS;
829 break;
830 case DOT11_A_MODE:
831 pList->networkType = os802_11OFDM5;
832 break;
833 case DOT11_G_MODE:
834 pList->networkType = os802_11OFDM24;
835 break;
836 case DOT11_DUAL_MODE:
837 pList->networkType = os802_11Automode;
838 break;
839 default:
840 pList->networkType = os802_11DS;
841 break;
842 }
843
844
845 /* Get XCC status */
846 #ifdef XCC_MODULE_INCLUDED
847 param.paramType = XCC_ENABLED;
848 XCCMngr_getParam(pAPConnection->hXCCMngr, ¶m);
849 pList->XCCEnabled = (param.content.XCCEnabled==XCC_MODE_ENABLED)? TI_TRUE : TI_FALSE;
850 #else
851 pList->XCCEnabled = TI_FALSE;
852 #endif
853
854 /* Get QoS type */
855 param.paramType = QOS_MNGR_ACTIVE_PROTOCOL;
856 qosMngr_getParams(pAPConnection->hQos, ¶m);
857 pList->qosEnabled = param.content.qosSiteProtocol != QOS_NONE;
858
859 pList->regDomain = REG_DOMAIN_FIXED;
860 /* Get regulatory domain type */
861 param.paramType = REGULATORY_DOMAIN_MANAGEMENT_CAPABILITY_ENABLED_PARAM;
862 regulatoryDomain_getParam(pAPConnection->hRegulatoryDomain, ¶m);
863 if (param.content.spectrumManagementEnabled)
864 { /* 802.11h is enabled (802.11h includes 802.11d) */
865 pList->regDomain = REG_DOMAIN_80211H;
866 }
867 else
868 {
869 param.paramType = REGULATORY_DOMAIN_ENABLED_PARAM;
870 regulatoryDomain_getParam(pAPConnection->hRegulatoryDomain, ¶m);
871 if (param.content.regulatoryDomainEnabled)
872 { /* 802.11d is enabled */
873 pList->regDomain = REG_DOMAIN_80211D;
874 }
875 }
876 return TI_OK;
877 }
878
apConn_connectToAP(TI_HANDLE hAPConnection,bssEntry_t * newAP,apConn_connRequest_t * request,TI_BOOL reNegotiateTspec)879 TI_STATUS apConn_connectToAP(TI_HANDLE hAPConnection,
880 bssEntry_t *newAP,
881 apConn_connRequest_t *request,
882 TI_BOOL reNegotiateTspec)
883 {
884 apConn_t *pAPConnection = (apConn_t *)hAPConnection;
885
886 AP_CONN_VALIDATE_HANDLE(hAPConnection);
887
888 pAPConnection->requestType = request->requestType;
889
890 switch (request->requestType)
891 {
892 case AP_CONNECT_RETAIN_CURR_AP:
893 apConn_smEvent(&(pAPConnection->currentState), AP_CONNECT_EVENT_RETAIN_CURRENT_AP, pAPConnection);
894 break;
895
896 case AP_CONNECT_FULL_TO_AP:
897 pAPConnection->removeKeys = TI_TRUE;
898 pAPConnection->newAP = newAP;
899 pAPConnection->roamingFailedHandoverNum++;
900 pAPConnection->reNegotiateTSPEC = reNegotiateTspec;
901 apConn_smEvent(&(pAPConnection->currentState), AP_CONNECT_EVENT_START_ROAM, pAPConnection);
902 break;
903
904 case AP_CONNECT_FAST_TO_AP:
905 case AP_CONNECT_RECONNECT_CURR_AP:
906 pAPConnection->removeKeys = TI_FALSE;
907 pAPConnection->newAP = newAP;
908 pAPConnection->roamingFailedHandoverNum++;
909 pAPConnection->reNegotiateTSPEC = reNegotiateTspec;
910 apConn_smEvent(&(pAPConnection->currentState), AP_CONNECT_EVENT_START_ROAM, pAPConnection);
911 break;
912
913 default:
914 break;
915 }
916
917 /* If there is vendor specific IE to attach to Assoc req, store it now */
918 if (request->dataBufLength > 0)
919 {
920 pAPConnection->vsIEbuf = request->dataBuf;
921 pAPConnection->vsIElength = request->dataBufLength;
922 }
923
924 return TI_OK;
925 }
926
apConn_getBSSParams(TI_HANDLE hAPConnection)927 bssEntry_t *apConn_getBSSParams(TI_HANDLE hAPConnection)
928 {
929 #ifdef TI_DBG
930 if (hAPConnection == NULL) /* Failed to allocate control block */
931 {
932 WLAN_OS_REPORT(("FATAL ERROR: apConn_create(): Error allocating cb - aborting\n"));
933 return NULL;
934 }
935 #endif
936
937 return currBSS_getBssInfo(((apConn_t *)hAPConnection)->hCurrBSS);
938 }
939
apConn_isSiteBanned(TI_HANDLE hAPConnection,TMacAddr * givenAp)940 TI_BOOL apConn_isSiteBanned(TI_HANDLE hAPConnection, TMacAddr * givenAp)
941 {
942 apConn_t * pAPConnection = (apConn_t *) hAPConnection;
943
944 return rsn_isSiteBanned(pAPConnection->hPrivacy, *givenAp);
945 }
946
apConn_getPreAuthAPStatus(TI_HANDLE hAPConnection,TMacAddr * givenAp)947 TI_BOOL apConn_getPreAuthAPStatus(TI_HANDLE hAPConnection, TMacAddr *givenAp)
948 {
949 apConn_t *pAPConnection = (apConn_t *)hAPConnection;
950 paramInfo_t param;
951
952 AP_CONN_VALIDATE_HANDLE(hAPConnection);
953
954 param.paramType = RSN_PRE_AUTH_STATUS;
955 MAC_COPY (param.content.rsnApMac, *givenAp);
956 rsn_getParam(pAPConnection->hPrivacy, ¶m);
957
958 return param.content.rsnPreAuthStatus;
959 }
960
apConn_preAuthenticate(TI_HANDLE hAPConnection,bssList_t * listAPs)961 TI_STATUS apConn_preAuthenticate(TI_HANDLE hAPConnection, bssList_t *listAPs)
962 {
963 apConn_t *pAPConnection = (apConn_t *)hAPConnection;
964 TBssidList4PreAuth apList;
965 TI_UINT32 listIndex, apListIndex;
966 bssEntry_t *pCurrentAP;
967 TI_UINT8 *pRsnIEs;
968
969 #ifdef TI_DBG
970 if ((hAPConnection == NULL) || (listAPs == NULL))
971 {
972 WLAN_OS_REPORT(("FATAL ERROR: AP Connection context is not initiated\n"));
973 return TI_NOK;
974 }
975
976 TRACE0(pAPConnection->hReport, REPORT_SEVERITY_INFORMATION, "apConn_reserveResources \n");
977 #endif
978
979 for (listIndex=0, apListIndex=0; listIndex<listAPs->numOfEntries; listIndex++)
980 {
981 MAC_COPY (apList.bssidList[apListIndex].bssId,
982 listAPs->BSSList[listIndex].BSSID);
983
984 /* search in the buffer pointer to the beginning of the
985 RSN IE according to the IE ID */
986 if (!mlmeParser_ParseIeBuffer (pAPConnection->hMlme, listAPs->BSSList[listIndex].pBuffer, listAPs->BSSList[listIndex].bufferLength, RSN_IE_ID, &pRsnIEs, NULL, 0))
987 {
988 TRACE0(pAPConnection->hReport, REPORT_SEVERITY_INFORMATION, "apConn_preAuthenticate, no RSN IE was found \n");
989 TRACE_INFO_HEX(pAPConnection->hReport, listAPs->BSSList[listIndex].pBuffer, listAPs->BSSList[listIndex].bufferLength);
990 continue;
991 }
992
993 apList.bssidList[apListIndex].pRsnIEs = (dot11_RSN_t*)pRsnIEs;
994 apList.bssidList[apListIndex].rsnIeLen = apList.bssidList[apListIndex].pRsnIEs->hdr[1] + 2;
995 apListIndex++;
996 }
997
998 /* Start pre-auth after any Conn succ (including first),
999 and not only when a New BSSID was added, in order to save/refresh
1000 PMKID of the current AP.*/
1001 {
1002 /* Add the current BSSID to the list */
1003 pCurrentAP = apConn_getBSSParams(pAPConnection);
1004 MAC_COPY (apList.bssidList[apListIndex].bssId, pCurrentAP->BSSID);
1005 /* search in the buffer pointer to the beginning of the
1006 RSN IE according to the IE ID */
1007
1008 if (!mlmeParser_ParseIeBuffer (pAPConnection->hMlme, pCurrentAP->pBuffer, pCurrentAP->bufferLength, RSN_IE_ID, &pRsnIEs, NULL, 0))
1009 {
1010 TRACE6(pAPConnection->hReport, REPORT_SEVERITY_ERROR, "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[0], pCurrentAP->BSSID[1], pCurrentAP->BSSID[2], pCurrentAP->BSSID[3], pCurrentAP->BSSID[4], pCurrentAP->BSSID[5]);
1011 report_PrintDump (pCurrentAP->pBuffer, pCurrentAP->bufferLength);
1012 apList.bssidList[apListIndex].pRsnIEs = NULL;
1013 apList.bssidList[apListIndex].rsnIeLen = 0;
1014 }
1015 else
1016 {
1017 apList.bssidList[apListIndex].pRsnIEs = (dot11_RSN_t*)pRsnIEs;
1018 apList.bssidList[apListIndex].rsnIeLen = apList.bssidList[apListIndex].pRsnIEs->hdr[1] + 2;
1019 }
1020 apList.NumOfItems = apListIndex+1;
1021 rsn_startPreAuth(pAPConnection->hPrivacy, &apList);
1022 }
1023 return TI_OK;
1024 }
1025
apConn_prepareToRoaming(TI_HANDLE hAPConnection,apConn_roamingTrigger_e reason)1026 TI_STATUS apConn_prepareToRoaming(TI_HANDLE hAPConnection, apConn_roamingTrigger_e reason)
1027 {
1028 apConn_t *pAPConnection = (apConn_t *)hAPConnection;
1029
1030 AP_CONN_VALIDATE_HANDLE(hAPConnection);
1031
1032 pAPConnection->roamReason = reason;
1033
1034 return apConn_smEvent(&(pAPConnection->currentState), AP_CONNECT_EVENT_PREPARE_FOR_ROAMING, pAPConnection);
1035 }
1036
1037 /**
1038 *
1039 * apConn_indicateSwitchChannelInProgress
1040 *
1041 * \b Description:
1042 *
1043 * This function is called when switch channel process is started; it will trigger
1044 * AP Connection state machine from 'Wait for roaming start' to 'Switch channel in progress'
1045 * state.
1046 *
1047 * \b ARGS:
1048 *
1049 * I - reason - the reason for roaming \n
1050 *
1051 * \b RETURNS:
1052 *
1053 * TI_OK if successful, TI_NOK otherwise.
1054 *
1055 * \sa
1056 */
apConn_indicateSwitchChannelInProgress(TI_HANDLE hAPConnection)1057 TI_STATUS apConn_indicateSwitchChannelInProgress(TI_HANDLE hAPConnection)
1058 {
1059 apConn_t *pAPConnection = (apConn_t *)hAPConnection;
1060
1061 AP_CONN_VALIDATE_HANDLE(hAPConnection);
1062
1063 apConn_smEvent(&(pAPConnection->currentState), AP_CONNECT_EVENT_START_SWITCH_CHANNEL, pAPConnection);
1064 return TI_OK;
1065 }
1066
1067
1068 /**
1069 *
1070 * apConn_indicateSwitchChannelFinished
1071 *
1072 * \b Description:
1073 *
1074 * This function is called when switch channel process is finished
1075 *
1076 * \b ARGS:
1077 *
1078 * I - reason - the reason for roaming \n
1079 *
1080 * \b RETURNS:
1081 *
1082 * TI_OK if successful, TI_NOK otherwise.
1083 *
1084 * \sa
1085 */
apConn_indicateSwitchChannelFinished(TI_HANDLE hAPConnection)1086 TI_STATUS apConn_indicateSwitchChannelFinished(TI_HANDLE hAPConnection)
1087 {
1088 apConn_t *pAPConnection = (apConn_t *)hAPConnection;
1089
1090 AP_CONN_VALIDATE_HANDLE(hAPConnection);
1091
1092 apConn_smEvent(&(pAPConnection->currentState), AP_CONNECT_EVENT_FINISHED_SWITCH_CH, pAPConnection);
1093
1094 return TI_OK;
1095 }
1096
1097
1098 /**
1099 *
1100 * apConn_start
1101 *
1102 * \b Description:
1103 *
1104 * Called by SME module when new connection has been successfully established (first time connection)
1105 *
1106 * \b ARGS:
1107 *
1108 * I - isValidBSS - if TI_FALSE, no roaming shall be performed, disconnect upon any roaming event;
1109 * other parameters of current AP can be received from Current BSS module
1110 *
1111 * \b RETURNS:
1112 *
1113 * TI_OK if successful, TI_NOK otherwise.
1114 *
1115 * \sa
1116 */
apConn_start(TI_HANDLE hAPConnection,TI_BOOL roamingEnabled)1117 TI_STATUS apConn_start(TI_HANDLE hAPConnection, TI_BOOL roamingEnabled)
1118 {
1119 apConn_t *pAPConnection = (apConn_t *)hAPConnection;
1120
1121 AP_CONN_VALIDATE_HANDLE(hAPConnection);
1122
1123 pAPConnection->roamingEnabled = roamingEnabled;
1124
1125 apConn_smEvent(&(pAPConnection->currentState), AP_CONNECT_EVENT_START, pAPConnection);
1126 return TI_OK;
1127 }
1128
1129
1130 /**
1131 *
1132 * apConn_stop
1133 *
1134 * \b Description:
1135 *
1136 * Called by SME module when current connection must be taken down
1137 * (due to driver download, connection failure or any other reason)
1138 *
1139 * \b ARGS:
1140 *
1141 * \b RETURNS:
1142 *
1143 * TI_OK if successful, TI_NOK otherwise.
1144 *
1145 * \sa
1146 */
apConn_stop(TI_HANDLE hAPConnection,TI_BOOL removeKeys)1147 TI_STATUS apConn_stop(TI_HANDLE hAPConnection, TI_BOOL removeKeys)
1148 {
1149 apConn_t *pAPConnection = (apConn_t *)hAPConnection;
1150
1151 pAPConnection->stopFromSmeNum++;
1152 pAPConnection->removeKeys = removeKeys;
1153 pAPConnection->sendDeauthPacket = TI_TRUE;
1154 pAPConnection->reNegotiateTSPEC = TI_FALSE;
1155 pAPConnection->voiceTspecConfigured = TI_FALSE;
1156 pAPConnection->videoTspecConfigured = TI_FALSE;
1157
1158 /* Mark that the connection is stopped due to reason outside the scope of this module */
1159 if (pAPConnection->roamReason == ROAMING_TRIGGER_SECURITY_ATTACK)
1160 pAPConnection->bNonRoamingDisAssocReason = TI_FALSE;
1161 else
1162 pAPConnection->bNonRoamingDisAssocReason = TI_TRUE;
1163
1164 apConn_smEvent(&(pAPConnection->currentState), AP_CONNECT_EVENT_STOP, pAPConnection);
1165 return TI_OK;
1166 }
1167
1168
1169 /**
1170 *
1171 * apConn_reportRoamingEvent
1172 *
1173 * \b Description:
1174 *
1175 * Called when one of roaming events occur
1176 *
1177 * \b ARGS:
1178 *
1179 * I - roamingEventType
1180 * I - pRoamingEventData - in case of 'Tx rate' event, or AP disconnect
1181 *
1182 * \b RETURNS:
1183 *
1184 * TI_OK if successful, TI_NOK otherwise.
1185 *
1186 * \sa
1187 */
apConn_reportRoamingEvent(TI_HANDLE hAPConnection,apConn_roamingTrigger_e roamingEventType,roamingEventData_u * pRoamingEventData)1188 TI_STATUS apConn_reportRoamingEvent(TI_HANDLE hAPConnection,
1189 apConn_roamingTrigger_e roamingEventType,
1190 roamingEventData_u *pRoamingEventData)
1191 {
1192 apConn_t *pAPConnection = (apConn_t *)hAPConnection;
1193 paramInfo_t param; /* parameter for retrieving BSSID */
1194 TI_UINT16 reasonCode = 0;
1195
1196 AP_CONN_VALIDATE_HANDLE(hAPConnection);
1197
1198 TRACE4(pAPConnection->hReport, REPORT_SEVERITY_INFORMATION, "apConn_reportRoamingEvent, type=%d, cur_state=%d, roamingEnabled=%d, roamEventCallb=%p \n", roamingEventType, pAPConnection->currentState, pAPConnection->roamingEnabled, pAPConnection->roamEventCallb);
1199
1200 /* 1. Check if this is Rogue AP test case */
1201 if (roamingEventType == ROAMING_TRIGGER_AP_DISCONNECT)
1202 {
1203 if (pRoamingEventData != NULL)
1204 { /* Save the disconnect reason for future use */
1205 pAPConnection->APDisconnect.uStatusCode = pRoamingEventData->APDisconnect.uStatusCode;
1206 pAPConnection->APDisconnect.bDeAuthenticate = pRoamingEventData->APDisconnect.bDeAuthenticate;
1207 reasonCode = pRoamingEventData->APDisconnect.uStatusCode;
1208 }
1209 if ((pAPConnection->ignoreDeauthReason0) && (pRoamingEventData!=NULL) &&
1210 (pAPConnection->APDisconnect.uStatusCode == 0))
1211 { /* This is required for Rogue AP test,
1212 When Rogue AP due to invalid User name, deauth with reason 0 arrives before the Rogue AP,
1213 and this XCC test fails.*/
1214 TRACE0(pAPConnection->hReport, REPORT_SEVERITY_INFORMATION, "apConn_reportRoamingEvent, Ignore DeAuth with reason 0 \n");
1215 return TI_OK;
1216 }
1217 TRACE1(pAPConnection->hReport, REPORT_SEVERITY_INFORMATION, "apConn_reportRoamingEvent, DeAuth with reason %d \n", pAPConnection->APDisconnect.uStatusCode);
1218
1219 if (pAPConnection->APDisconnect.uStatusCode == STATUS_CODE_802_1X_AUTHENTICATION_FAILED)
1220 {
1221 #ifdef XCC_MODULE_INCLUDED
1222 TI_STATUS status;
1223
1224 /* Raise the EAP-Failure as event */
1225 status = XCCMngr_rogueApDetected (pAPConnection->hXCCMngr, RSN_AUTH_STATUS_CHALLENGE_FROM_AP_FAILED);
1226 #endif
1227
1228
1229 /* Remove AP from candidate list for a specified amount of time */
1230 param.paramType = SITE_MGR_CURRENT_BSSID_PARAM;
1231 siteMgr_getParam(pAPConnection->hSiteMgr, ¶m);
1232
1233 TRACE1(pAPConnection->hReport, REPORT_SEVERITY_INFORMATION, "current station is banned from the roaming candidates list for %d Ms\n", RSN_AUTH_FAILURE_TIMEOUT);
1234
1235 rsn_banSite(pAPConnection->hPrivacy, param.content.siteMgrDesiredBSSID, RSN_SITE_BAN_LEVEL_FULL, RSN_AUTH_FAILURE_TIMEOUT);
1236 }
1237
1238 }
1239
1240 /* 2. Check if received trigger is masked out */
1241 if (((pAPConnection->isConsTxFailureMaskedOut) && (roamingEventType == ROAMING_TRIGGER_MAX_TX_RETRIES)) ||
1242 ((pAPConnection->isRssiTriggerMaskedOut) && (roamingEventType == ROAMING_TRIGGER_LOW_QUALITY)) ||
1243 ((pAPConnection->isSnrTriggerMaskedOut) && (roamingEventType == ROAMING_TRIGGER_LOW_SNR)) ||
1244 ((pAPConnection->islowRateTriggerMaskedOut)&& (roamingEventType == ROAMING_TRIGGER_LOW_TX_RATE)))
1245 {
1246 TRACE0(pAPConnection->hReport, REPORT_SEVERITY_INFORMATION, "apConn_reportRoamingEvent, trigger ignored \n");
1247 return TI_OK;
1248 }
1249
1250 /* 3. Valid trigger received: */
1251 /* 3a. Update statistics */
1252 pAPConnection->roamingTriggerEvents[roamingEventType]++;
1253
1254 /* 3b. Store the most severe trigger */
1255 if (pAPConnection->roamReason < roamingEventType)
1256 {
1257 pAPConnection->roamReason = roamingEventType;
1258 }
1259
1260 /* 3c. Check if Roaming Manager is available */
1261 if (((!pAPConnection->roamingEnabled) || (pAPConnection->roamEventCallb == NULL) ||
1262 (pAPConnection->currentState == AP_CONNECT_STATE_IDLE))
1263 && (roamingEventType >= ROAMING_TRIGGER_LOW_TX_RATE)
1264 && (roamingEventType != ROAMING_TRIGGER_MAX_TX_RETRIES))
1265 {
1266 /* 'Any SSID' configured, meaning Roaming Manager is not allowed to perform roaming,
1267 or Roaming Manager is not registered for roaming events;
1268 unless this is trigger to change parameters of background scan, disconnect the link */
1269 TRACE1(pAPConnection->hReport, REPORT_SEVERITY_INFORMATION, "Disconnecting link due to roaming event: ev = %d\n", roamingEventType);
1270
1271 /* Handle IBSS case TBD to remove
1272 Handle also the case where A first connection is in progress, and
1273 de-auth arrived. */
1274 if (pAPConnection->currentState == AP_CONNECT_STATE_IDLE)
1275 {
1276 sme_ReportApConnStatus(pAPConnection->hSme, STATUS_DISCONNECT_DURING_CONNECT, pAPConnection->APDisconnect.uStatusCode);
1277 }
1278 else
1279 {
1280 /* Infra-structure BSS case - disconnect the link */
1281 if (roamingEventType >= ROAMING_TRIGGER_AP_DISCONNECT)
1282 {
1283 pAPConnection->removeKeys = TI_TRUE;
1284 }
1285 else
1286 {
1287 pAPConnection->removeKeys = TI_FALSE;
1288 }
1289 UPDATE_SEND_DEAUTH_PACKET_FLAG(roamingEventType);
1290 if (roamingEventType == ROAMING_TRIGGER_SECURITY_ATTACK)
1291 pAPConnection->deauthPacketReasonCode = STATUS_MIC_FAILURE;
1292 else
1293 pAPConnection->deauthPacketReasonCode = STATUS_UNSPECIFIED;
1294 apConn_smEvent(&(pAPConnection->currentState), AP_CONNECT_EVENT_STOP, pAPConnection);
1295 }
1296 return TI_OK;
1297 }
1298
1299 /* 4. Check if we are in the middle of switching channel */
1300 if (pAPConnection->currentState == AP_CONNECT_STATE_SWITCHING_CHANNEL)
1301 {
1302 /* Trigger received in the middle of switch channel, continue without reporting Roaming Manager */
1303 TRACE1(pAPConnection->hReport, REPORT_SEVERITY_INFORMATION, "Roaming event during switch channel: ev = %d\n", roamingEventType);
1304 return TI_OK;
1305 }
1306
1307 /* 5. Report Roaming Manager */
1308 if ((pAPConnection->roamingEnabled == TI_TRUE) && (pAPConnection->roamEventCallb != NULL))
1309 {
1310 TRACE1(pAPConnection->hReport, REPORT_SEVERITY_INFORMATION, "Roaming event raised: ev = %d\n", roamingEventType);
1311 if (roamingEventType == ROAMING_TRIGGER_LOW_QUALITY)
1312 {
1313 EvHandlerSendEvent(pAPConnection->hEvHandler, IPC_EVENT_LOW_RSSI, NULL,0);
1314 }
1315 /* Report to Roaming Manager */
1316 pAPConnection->roamEventCallb(pAPConnection->hRoamMng, &roamingEventType, reasonCode);
1317 }
1318
1319 return TI_OK;
1320 }
1321
1322
1323 /**
1324 *
1325 * apConn_RoamHandoffFinished
1326 *
1327 * \b Description:
1328 *
1329 * Called when XCC module receives response from the supplicant or recognizes
1330 * timeout while waiting for the response
1331 *
1332 * \b ARGS:
1333 *
1334 * \b RETURNS:
1335 *
1336 * \sa
1337 */
apConn_RoamHandoffFinished(TI_HANDLE hAPConnection)1338 void apConn_RoamHandoffFinished(TI_HANDLE hAPConnection)
1339 {
1340 apConn_t *pAPConnection = (apConn_t *)hAPConnection;
1341
1342 #ifdef TI_DBG
1343 if (hAPConnection == NULL) /* Failed to allocate control block */
1344 {
1345 WLAN_OS_REPORT(("FATAL ERROR: apConn_create(): Error allocating cb - aborting\n"));
1346 return;
1347 }
1348 #endif
1349
1350 apConn_smEvent(&(pAPConnection->currentState), AP_CONNECT_EVENT_FINISHED_HAND_OVER, pAPConnection);
1351 }
1352
1353
1354 /**
1355 *
1356 * apConn_DisconnCompleteInd
1357 *
1358 * \b Description:
1359 *
1360 * DISASSOCIATE Packet was sent - proceed with stopping the module
1361 *
1362 * \b ARGS:
1363 *
1364 * I - pData - pointer to AP Connection context\n
1365 *
1366 * \b RETURNS:
1367 *
1368 * None
1369 *
1370 * \sa
1371 */
apConn_DisconnCompleteInd(TI_HANDLE hAPConnection,mgmtStatus_e status,TI_UINT32 uStatusCode)1372 void apConn_DisconnCompleteInd(TI_HANDLE hAPConnection, mgmtStatus_e status, TI_UINT32 uStatusCode)
1373 {
1374 apConn_t *pAPConnection = (apConn_t *)hAPConnection;
1375
1376 apConn_smEvent(&(pAPConnection->currentState), AP_CONNECT_EVENT_FINISHED_OK, pAPConnection);
1377 }
1378
1379
1380 /**
1381 *
1382 * apConn_updateNeighborAPsList
1383 *
1384 * \b Description:
1385 *
1386 * Called by XCC Manager when Priority APs are found
1387 *
1388 * \b ARGS:
1389 *
1390 * \b RETURNS:
1391 *
1392 * TI_OK if successful, TI_NOK otherwise.
1393 *
1394 * \sa
1395 */
apConn_updateNeighborAPsList(TI_HANDLE hAPConnection,neighborAPList_t * pListOfpriorityAps)1396 void apConn_updateNeighborAPsList(TI_HANDLE hAPConnection, neighborAPList_t *pListOfpriorityAps)
1397 {
1398 apConn_t *pAPConnection = (apConn_t *)hAPConnection;
1399
1400 if (pAPConnection->returnNeighborApsCallb != NULL )
1401 {
1402 pAPConnection->returnNeighborApsCallb(pAPConnection->hRoamMng, pListOfpriorityAps);
1403 }
1404 }
1405
1406
1407 /**
1408 *
1409 * apConn_getRoamingStatistics
1410 *
1411 * \b Description:
1412 *
1413 * Called from Measurement XCC sub-module when preparing TSM report to the AP.
1414 *
1415 * \b ARGS: AP Connection handle
1416 *
1417 * \b RETURNS:
1418 *
1419 * total number of successful roams
1420 * delay of the latest successful roam
1421 *
1422 * \sa
1423 */
apConn_getRoamingStatistics(TI_HANDLE hAPConnection,TI_UINT8 * roamingCount,TI_UINT16 * roamingDelay)1424 void apConn_getRoamingStatistics(TI_HANDLE hAPConnection, TI_UINT8 *roamingCount, TI_UINT16 *roamingDelay)
1425 {
1426 apConn_t *pAPConnection = (apConn_t *)hAPConnection;
1427
1428 /* Get (and clear) total number of successful roams */
1429 *roamingCount = pAPConnection->roamingSuccesfulHandoverNum;
1430 pAPConnection->roamingSuccesfulHandoverNum = 0;
1431
1432 /* Get delay of the latest roam */
1433 *roamingDelay = pAPConnection->lastRoamingDelay;
1434 pAPConnection->lastRoamingDelay = 0;
1435 }
1436
1437
1438
1439
1440 /**
1441 *
1442 * apConn_resetRoamingStatistics
1443 *
1444 * \b Description:
1445 *
1446 * Called from Measurement XCC sub-module in order to re-start roaming statistics.
1447 *
1448 * \b ARGS: AP Connection handle
1449 *
1450 * \b RETURNS:
1451 *
1452 * total number of successful roams
1453 * delay of the latest successful roam
1454 *
1455 * \sa
1456 */
apConn_resetRoamingStatistics(TI_HANDLE hAPConnection)1457 void apConn_resetRoamingStatistics(TI_HANDLE hAPConnection)
1458 {
1459 apConn_t *pAPConnection = (apConn_t *)hAPConnection;
1460
1461 pAPConnection->resetReportedRoamingStatistics = TI_TRUE;
1462 pAPConnection->roamingSuccesfulHandoverNum = 0;
1463 pAPConnection->lastRoamingDelay = 0;
1464 }
1465
1466
1467 /**
1468 *
1469 * apConn_printStatistics
1470 *
1471 * \b Description:
1472 *
1473 * Called by Site Manager when request to print statistics is requested from CLI
1474 *
1475 * \b ARGS: AP Connection handle
1476 *
1477 * \b RETURNS:
1478 *
1479 * TI_OK if successful, TI_NOK otherwise.
1480 *
1481 * \sa
1482 */
apConn_printStatistics(TI_HANDLE hAPConnection)1483 void apConn_printStatistics(TI_HANDLE hAPConnection)
1484 {
1485 WLAN_OS_REPORT(("-------------- Roaming Statistics ---------------\n\n"));
1486 WLAN_OS_REPORT(("- Low TX rate = %d\n", ((apConn_t *)hAPConnection)->roamingTriggerEvents[ROAMING_TRIGGER_LOW_TX_RATE]));
1487 WLAN_OS_REPORT(("- Low SNR = %d\n", ((apConn_t *)hAPConnection)->roamingTriggerEvents[ROAMING_TRIGGER_LOW_SNR]));
1488 WLAN_OS_REPORT(("- Low Quality = %d\n", ((apConn_t *)hAPConnection)->roamingTriggerEvents[ROAMING_TRIGGER_LOW_QUALITY]));
1489 WLAN_OS_REPORT(("- MAX TX retries = %d\n", ((apConn_t *)hAPConnection)->roamingTriggerEvents[ROAMING_TRIGGER_MAX_TX_RETRIES]));
1490 WLAN_OS_REPORT(("- BSS Loss TX = %d\n", ((apConn_t *)hAPConnection)->roamingTriggerEvents[ROAMING_TRIGGER_BSS_LOSS]));
1491 WLAN_OS_REPORT(("- Switch Channel = %d\n", ((apConn_t *)hAPConnection)->roamingTriggerEvents[ROAMING_TRIGGER_SWITCH_CHANNEL]));
1492 WLAN_OS_REPORT(("- AP Disconnect = %d\n", ((apConn_t *)hAPConnection)->roamingTriggerEvents[ROAMING_TRIGGER_AP_DISCONNECT]));
1493 WLAN_OS_REPORT(("- SEC attack = %d\n", ((apConn_t *)hAPConnection)->roamingTriggerEvents[ROAMING_TRIGGER_SECURITY_ATTACK]));
1494 WLAN_OS_REPORT(("\n"));
1495 WLAN_OS_REPORT(("- Successful roaming = %d\n", ((apConn_t *)hAPConnection)->roamingSuccesfulHandoverTotalNum));
1496 WLAN_OS_REPORT(("- UnSuccessful roaming = %d\n", ((apConn_t *)hAPConnection)->roamingFailedHandoverNum));
1497 WLAN_OS_REPORT(("- Giving up roaming = %d\n", ((apConn_t *)hAPConnection)->retainCurrAPNum));
1498 WLAN_OS_REPORT(("- Disconnect cmd from roaming manager = %d\n", ((apConn_t *)hAPConnection)->disconnectFromRoamMngrNum));
1499 WLAN_OS_REPORT(("- Disconnect cmd from SME = %d\n", ((apConn_t *)hAPConnection)->stopFromSmeNum));
1500 WLAN_OS_REPORT(("\n"));
1501 }
1502
1503
1504
1505 /**
1506 *
1507 * apConn_getVendorSpecificIE
1508 *
1509 * \b Description:
1510 *
1511 * Called by Association SM when request to associate is built and sent to AP;
1512 * returns request updated with vendor specific info-element
1513 *
1514 * \b ARGS:
1515 *
1516 * I - hAPConnection - AP Connection handle\n
1517 * O - pRequest - pointer to request buffer\n
1518 * O - len - size of returned IE\n
1519 *
1520 * \b RETURNS:
1521 *
1522 * TI_OK if successful, TI_NOK otherwise.
1523 *
1524 * \sa
1525 */
apConn_getVendorSpecificIE(TI_HANDLE hAPConnection,TI_UINT8 * pRequest,TI_UINT32 * len)1526 TI_STATUS apConn_getVendorSpecificIE(TI_HANDLE hAPConnection, TI_UINT8 *pRequest, TI_UINT32 *len)
1527 {
1528 apConn_t *pAPConnection = (apConn_t *)hAPConnection;
1529
1530 if (pAPConnection->vsIElength > 0)
1531 {
1532 *len = pAPConnection->vsIElength;
1533 os_memoryCopy(pAPConnection->hOs, pRequest, pAPConnection->vsIEbuf, pAPConnection->vsIElength);
1534 }
1535 else
1536 {
1537 *len = 0;
1538 }
1539 return TI_OK;
1540 }
1541
1542
1543 /* Internal functions implementation */
1544
1545
1546 /**
1547 *
1548 * apConn_smEvent
1549 *
1550 * \b Description:
1551 *
1552 * AP Connection state machine transition function
1553 *
1554 * \b ARGS:
1555 *
1556 * I/O - currentState - current state in the state machine\n
1557 * I - event - specific event for the state machine\n
1558 * I - pData - pointer to AP Connection context\n
1559 *
1560 * \b RETURNS:
1561 *
1562 * TI_OK on success, TI_NOK otherwise.
1563 *
1564 * \sa
1565 */
apConn_smEvent(TI_UINT8 * currState,TI_UINT8 event,void * data)1566 static TI_STATUS apConn_smEvent(TI_UINT8 *currState, TI_UINT8 event, void* data)
1567 {
1568 TI_STATUS status;
1569 TI_UINT8 nextState;
1570 apConn_t *pAPConnection;
1571
1572 pAPConnection = (apConn_t *)data;
1573 status = fsm_GetNextState(pAPConnection->apConnSM, (TI_UINT8)*currState, event, &nextState);
1574 if (status == TI_OK)
1575 {
1576 TRACE3( pAPConnection->hReport, REPORT_SEVERITY_INFORMATION, "apConn_smEvent: <currentState = %d, event = %d> --> nextState = %d\n", *currState, event, nextState);
1577
1578 status = fsm_Event(pAPConnection->apConnSM, (TI_UINT8 *)currState, event, pAPConnection);
1579 return status;
1580 }
1581 else
1582 {
1583 TRACE0(pAPConnection->hReport, REPORT_SEVERITY_ERROR, "apConn_smEvent, fsm_GetNextState error\n");
1584 return status;
1585 }
1586 }
1587
1588
1589 /**
1590 *
1591 * apConn_smNop - Do nothing
1592 *
1593 * \b Description:
1594 *
1595 * Do nothing in the SM.
1596 *
1597 * \b ARGS:
1598 *
1599 * I - pData - pointer to AP Connection context \n
1600 *
1601 * \b RETURNS:
1602 *
1603 * TI_OK if successful, TI_NOK otherwise.
1604 *
1605 *
1606 */
apConn_smNop(void * pData)1607 static TI_STATUS apConn_smNop(void *pData)
1608 {
1609 apConn_t *hReport = ((apConn_t *)pData)->hReport;
1610 TRACE0(hReport, REPORT_SEVERITY_INFORMATION, "apConn_smNop\n");
1611 return TI_OK;
1612 }
1613
1614
1615 /**
1616 *
1617 * apConn_smUnexpected - Unexpected event
1618 *
1619 * \b Description:
1620 *
1621 * Unexpected event in the SM.
1622 *
1623 * \b ARGS:
1624 *
1625 * I - pData - pointer to AP Connection context \n
1626 *
1627 * \b RETURNS:
1628 *
1629 * TI_OK if successful, TI_NOK otherwise.
1630 *
1631 *
1632 */
apConn_smUnexpected(void * pData)1633 static TI_STATUS apConn_smUnexpected(void *pData)
1634 {
1635 TRACE0(((apConn_t *)pData)->hReport, REPORT_SEVERITY_INFORMATION, "apConn_smUnexpected\n");
1636 return TI_NOK;
1637 }
1638
1639
1640 /**
1641 *
1642 * apConn_startWaitingForTriggers
1643 *
1644 * \b Description:
1645 *
1646 * SME informs AP Connection module about successfull link establishment; start wiating for roaming triggers
1647 *
1648 * \b ARGS:
1649 *
1650 * I - pData - pointer to AP Connection context \n
1651 *
1652 * \b RETURNS:
1653 *
1654 * TI_OK on success, TI_NOK otherwise.
1655 *
1656 * \sa
1657 */
apConn_startWaitingForTriggers(void * pData)1658 static TI_STATUS apConn_startWaitingForTriggers(void *pData)
1659 {
1660 apConn_t *pAPConnection;
1661 apConn_connStatus_t reportStatus;
1662 paramInfo_t param;
1663
1664 pAPConnection = (apConn_t *)pData;
1665
1666 if ((pAPConnection->roamingEnabled) && (pAPConnection->reportStatusCallb != NULL))
1667 {
1668 param.paramType = ASSOC_ASSOCIATION_REQ_PARAM;
1669
1670 assoc_getParam(pAPConnection->hAssoc, ¶m);
1671 reportStatus.dataBuf = (char *)(param.content.assocReqBuffer.buffer);
1672 reportStatus.dataBufLength = param.content.assocReqBuffer.bufferSize;
1673
1674 reportStatus.status = CONN_STATUS_CONNECTED;
1675 pAPConnection->reportStatusCallb(pAPConnection->hRoamMng, &reportStatus);
1676 }
1677 pAPConnection->firstAttempt2Roam = TI_TRUE;
1678 pAPConnection->roamReason = ROAMING_TRIGGER_NONE;
1679 pAPConnection->removeKeys = TI_TRUE;
1680 pAPConnection->sendDeauthPacket = TI_TRUE;
1681 pAPConnection->reNegotiateTSPEC = TI_FALSE;
1682 pAPConnection->voiceTspecConfigured = TI_FALSE;
1683 pAPConnection->videoTspecConfigured = TI_FALSE;
1684 return TI_OK;
1685 }
1686
1687
1688 /**
1689 *
1690 * apConn_connectedToNewAP
1691 *
1692 * \b Description:
1693 *
1694 * After roaming was requested, Connection SM informs AP Connection module about
1695 * successful link re-establishment; start waiting for roaming triggers
1696 *
1697 * \b ARGS:
1698 *
1699 * I - pData - pointer to AP Connection context \n
1700 *
1701 * \b RETURNS:
1702 *
1703 * TI_OK on success, TI_NOK otherwise.
1704 *
1705 * \sa
1706 */
apConn_connectedToNewAP(void * pData)1707 static TI_STATUS apConn_connectedToNewAP(void *pData)
1708 {
1709 apConn_t *pAPConnection;
1710 apConn_connStatus_t reportStatus;
1711 paramInfo_t param;
1712
1713 pAPConnection = (apConn_t *)pData;
1714
1715 /* Configure SCR group back to connection */
1716 scr_setGroup (pAPConnection->hScr, SCR_GID_CONNECTED);
1717
1718 /* Erase vendor specific info-element if was defined for last AP Assoc request */
1719 pAPConnection->vsIElength = 0;
1720
1721 /* TBD Notify Curr BSS module about update of current AP database */
1722
1723 if (pAPConnection->roamingFailedHandoverNum>0)
1724 {
1725 pAPConnection->roamingFailedHandoverNum--;
1726 }
1727 /* Report Roaming Manager */
1728 if (pAPConnection->reportStatusCallb != NULL)
1729 {
1730 param.paramType = ASSOC_ASSOCIATION_REQ_PARAM;
1731
1732 assoc_getParam(pAPConnection->hAssoc, ¶m);
1733 reportStatus.dataBuf = (char *)(param.content.assocReqBuffer.buffer);
1734 reportStatus.dataBufLength = param.content.assocReqBuffer.bufferSize;
1735
1736 reportStatus.status = CONN_STATUS_HANDOVER_SUCCESS;
1737
1738 pAPConnection->reportStatusCallb(pAPConnection->hRoamMng, &reportStatus);
1739 }
1740 pAPConnection->firstAttempt2Roam = TI_TRUE;
1741 pAPConnection->roamReason = ROAMING_TRIGGER_NONE;
1742 pAPConnection->roamingSuccesfulHandoverTotalNum++;
1743 pAPConnection->removeKeys = TI_TRUE;
1744 pAPConnection->sendDeauthPacket = TI_TRUE;
1745 pAPConnection->reNegotiateTSPEC = TI_FALSE;
1746 pAPConnection->voiceTspecConfigured = TI_FALSE;
1747 pAPConnection->videoTspecConfigured = TI_FALSE;
1748
1749
1750 if (!pAPConnection->resetReportedRoamingStatistics)
1751 {
1752 pAPConnection->roamingSuccesfulHandoverNum++;
1753 pAPConnection->lastRoamingDelay =
1754 (TI_UINT16)os_timeStampMs(pAPConnection->hOs) - pAPConnection->roamingStartedTimestamp;
1755 }
1756 else
1757 {
1758 pAPConnection->resetReportedRoamingStatistics = TI_FALSE;
1759 }
1760
1761 /* Raise event of Roaming Completion */
1762 TRACE0(pAPConnection->hReport, REPORT_SEVERITY_INFORMATION, "EvHandlerSendEvent -ROAMING_COMPLETE\n");
1763 EvHandlerSendEvent(pAPConnection->hEvHandler, IPC_EVENT_ROAMING_COMPLETE, NULL, 0);
1764
1765 return TI_OK;
1766 }
1767
1768
1769 /**
1770 *
1771 * apConn_stopConnection
1772 *
1773 * \b Description:
1774 *
1775 * Stop required before roaming was started
1776 *
1777 * \b ARGS:
1778 *
1779 * I - pData - pointer to AP Connection context\n
1780 *
1781 * \b RETURNS:
1782 *
1783 * TI_OK on success, TI_NOK otherwise.
1784 *
1785 * \sa
1786 */
apConn_stopConnection(void * pData)1787 static TI_STATUS apConn_stopConnection(void *pData)
1788 {
1789 apConn_t *pAPConnection;
1790 DisconnectType_e disConnType;
1791 pAPConnection = (apConn_t *)pData;
1792
1793 TRACE2(pAPConnection->hReport, REPORT_SEVERITY_INFORMATION, "apConn_stopConnection, calls conn_stop, removeKeys=%d, sendDeauthPacket=%d \n", pAPConnection->removeKeys, pAPConnection->sendDeauthPacket);
1794
1795 /* Erase vendor specific info-element if was defined for last AP Assoc request */
1796 pAPConnection->vsIElength = 0;
1797
1798 /* In case AP connection was stopped by SME, and radioOn is false, meaning immidiate shutdown is required without disassoc frame */
1799 /* Otherwise, ask for normal disconnection with disassoc frame */
1800 disConnType = (pAPConnection->sendDeauthPacket == TI_TRUE) ? DISCONNECT_DE_AUTH : DISCONNECT_IMMEDIATE;
1801
1802
1803
1804 /* set the SCr group to connecting */
1805 scr_setGroup (pAPConnection->hScr, SCR_GID_CONNECT);
1806
1807 /* Stop Connection state machine - always immediate TBD */
1808 conn_stop(pAPConnection->hConnSm,
1809 disConnType,
1810 pAPConnection->deauthPacketReasonCode,
1811 pAPConnection->removeKeys, /* for Roaming, do not remove the keys */
1812 apConn_DisconnCompleteInd,
1813 pAPConnection);
1814
1815 pAPConnection->deauthPacketReasonCode = STATUS_UNSPECIFIED;
1816
1817 return TI_OK;
1818 }
1819
1820
1821 /**
1822 *
1823 * apConn_reportDisconnected
1824 *
1825 * \b Description:
1826 *
1827 * Moving from 'Disconnecting' state to 'Idle':
1828 * RoamMgr.status("not-connected")
1829 *
1830 * \b ARGS:
1831 *
1832 * I - pData - pointer to AP Connection context\n
1833 *
1834 * \b RETURNS:
1835 *
1836 * TI_OK on success, TI_NOK otherwise.
1837 *
1838 * \sa
1839 */
apConn_reportDisconnected(void * pData)1840 static TI_STATUS apConn_reportDisconnected(void *pData)
1841 {
1842 apConn_t *pAPConnection;
1843 apConn_connStatus_t reportStatus;
1844
1845 pAPConnection = (apConn_t *)pData;
1846
1847 if (pAPConnection->reportStatusCallb != NULL)
1848 {
1849 reportStatus.status = CONN_STATUS_NOT_CONNECTED;
1850 pAPConnection->reportStatusCallb(pAPConnection->hRoamMng, &reportStatus);
1851 }
1852
1853 pAPConnection->firstAttempt2Roam = TI_TRUE;
1854
1855 /* Notify SME */
1856 apConn_reportConnStatusToSME(pAPConnection);
1857
1858 return TI_OK;
1859 }
1860
1861
1862 /**
1863 *
1864 * apConn_retainAP
1865 *
1866 * \b Description:
1867 *
1868 * Roaming Manager gives up on roaming.
1869 * Moving from 'Wait for connection command' back to 'Wait for roam started.
1870 *
1871 * \b ARGS:
1872 *
1873 * I - pData - pointer to AP Connection context\n
1874 *
1875 * \b RETURNS:
1876 *
1877 * TI_OK on success, TI_NOK otherwise.
1878 *
1879 * \sa
1880 */
apConn_retainAP(void * data)1881 static TI_STATUS apConn_retainAP(void *data)
1882 {
1883 apConn_t *pAPConnection;
1884 apConn_connStatus_t reportStatus;
1885 paramInfo_t param;
1886
1887 pAPConnection = (apConn_t *)data;
1888
1889 /* Configure SCR group back to connection */
1890 scr_setGroup (pAPConnection->hScr, SCR_GID_CONNECTED);
1891
1892 /* Report Roaming Manager */
1893 if (pAPConnection->reportStatusCallb != NULL)
1894 {
1895 param.paramType = ASSOC_ASSOCIATION_REQ_PARAM;
1896
1897 assoc_getParam(pAPConnection->hAssoc, ¶m);
1898 reportStatus.dataBuf = (char *)(param.content.assocReqBuffer.buffer);
1899 reportStatus.dataBufLength = param.content.assocReqBuffer.bufferSize;
1900
1901 reportStatus.status = CONN_STATUS_HANDOVER_SUCCESS;
1902
1903 pAPConnection->reportStatusCallb(pAPConnection->hRoamMng, &reportStatus);
1904 }
1905 pAPConnection->retainCurrAPNum++;
1906
1907 pAPConnection->roamReason = ROAMING_TRIGGER_NONE;
1908 pAPConnection->removeKeys = TI_TRUE;
1909 pAPConnection->sendDeauthPacket = TI_TRUE;
1910 pAPConnection->reNegotiateTSPEC = TI_FALSE;
1911 pAPConnection->voiceTspecConfigured = TI_FALSE;
1912 pAPConnection->videoTspecConfigured = TI_FALSE;
1913
1914 return TI_OK;
1915 }
1916
1917
1918 /**
1919 *
1920 * apConn_requestCCKM
1921 *
1922 * \b Description:
1923 *
1924 * Roaming Manager requests to roaming.
1925 * Get CCKM (prepare hand-off).
1926 *
1927 * \b ARGS:
1928 *
1929 * I - pData - pointer to AP Connection context\n
1930 *
1931 * \b RETURNS:
1932 *
1933 * TI_OK on success, TI_NOK otherwise.
1934 *
1935 * \sa
1936 */
apConn_requestCCKM(void * data)1937 static TI_STATUS apConn_requestCCKM(void *data)
1938 {
1939 apConn_t *pAPConnection;
1940 TI_STATUS status;
1941
1942 pAPConnection = (apConn_t *)data;
1943
1944 #ifdef XCC_MODULE_INCLUDED
1945 /* Send request to XCC module */
1946 apConn_calcNewTsf(pAPConnection, (TI_UINT8 *)&(pAPConnection->newAP->lastRxTSF), pAPConnection->newAP->lastRxHostTimestamp, pAPConnection->newAP->beaconInterval);
1947 status = XCCMngr_startCckm(pAPConnection->hXCCMngr, &(pAPConnection->newAP->BSSID), (TI_UINT8 *)&(pAPConnection->newAP->lastRxTSF));
1948 #else
1949 status = TI_OK;
1950 apConn_RoamHandoffFinished(pAPConnection);
1951 #endif
1952 return status;
1953 }
1954
1955
1956 #ifdef XCC_MODULE_INCLUDED
1957 /**
1958 *
1959 * calcNewTsfTimestamp - Calculates the TSF
1960 *
1961 * \b Description:
1962 *
1963 * Calculates the TSF according to the delta of the TSF from the last Beacon/Probe Resp and the current time.
1964 *
1965 * \b ARGS:
1966 *
1967 * I - hRoamingMngr - pointer to the roamingMngr SM context \n
1968 * I/O - tsfTimeStamp - the TSF field in the site entry of the roaming candidate AP
1969 * I - newSiteOsTimeStamp - the TS field in the site entry of the roaming candidate AP
1970 *
1971 * \b RETURNS:
1972 *
1973 * Nothing.
1974 *
1975 *
1976 */
apConn_calcNewTsf(apConn_t * hAPConnection,TI_UINT8 * tsfTimeStamp,TI_UINT32 newSiteOsTimeStamp,TI_UINT32 beaconInterval)1977 static void apConn_calcNewTsf(apConn_t *hAPConnection, TI_UINT8 *tsfTimeStamp, TI_UINT32 newSiteOsTimeStamp, TI_UINT32 beaconInterval)
1978 {
1979 apConn_t *pAPConnection = hAPConnection;
1980 TI_UINT32 osTimeStamp = os_timeStampMs(pAPConnection->hOs);
1981 TI_UINT32 deltaTimeStamp;
1982 TI_UINT32 tsfLsdw,tsfMsdw, newOsTimeStamp;
1983 TI_UINT32 remainder;
1984 TI_UINT8 newTsfTimestamp[TIME_STAMP_LEN];
1985
1986 /* get the delta TS between the TS of the last Beacon/ProbeResp-from the site table
1987 and the current TS */
1988 deltaTimeStamp = osTimeStamp - newSiteOsTimeStamp;
1989 tsfLsdw = *((TI_UINT32*)&tsfTimeStamp[0]);
1990 tsfMsdw = *((TI_UINT32*)&tsfTimeStamp[4]);
1991
1992 TRACE2(pAPConnection->hReport, REPORT_SEVERITY_INFORMATION, " TSF time LSDW reversed=%x, TSF time MSDW reversed=%x\n", tsfLsdw, tsfMsdw);
1993
1994 deltaTimeStamp = deltaTimeStamp*1000;/* from mSec to uSec*/
1995 /* Before adding, save remainder */
1996 remainder = tsfTimeStamp[3] + ((deltaTimeStamp & 0xff000000) >> 24);
1997
1998 /* The LS DW of the TS is the TSF taken from the last Beacon/Probe Resp
1999 + the delta TS from the time the Beacon/Probe Resp arrive till now. */
2000 newOsTimeStamp = deltaTimeStamp+tsfLsdw;
2001
2002 /* substracting one beacon interval */
2003 newOsTimeStamp -= (beaconInterval * 1024); /* im usec */
2004
2005 /* save just for debug printout */
2006 deltaTimeStamp +=osTimeStamp; /* uMsec */
2007 /* update the LSB of the TSF */
2008 newTsfTimestamp[0] = newOsTimeStamp & 0x000000ff;
2009 newTsfTimestamp[1] = (newOsTimeStamp & 0x0000ff00) >> 8;
2010 newTsfTimestamp[2] = (newOsTimeStamp & 0x00ff0000) >> 16;
2011 newTsfTimestamp[3] = (newOsTimeStamp & 0xff000000) >> 24;
2012
2013 /* increase the MSB in case of overflow */
2014 if (remainder > 0xff)
2015 {
2016 tsfMsdw++;
2017
2018 }
2019 /* update the MSB of the TSF */
2020 newTsfTimestamp[4] = tsfMsdw & 0x000000ff;
2021 newTsfTimestamp[5] = (tsfMsdw & 0x0000ff00) >> 8;
2022 newTsfTimestamp[6] = (tsfMsdw & 0x00ff0000) >> 16;
2023 newTsfTimestamp[7] = (tsfMsdw & 0xff000000) >> 24;
2024
2025 TRACE11(pAPConnection->hReport, REPORT_SEVERITY_INFORMATION, " 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]);
2026
2027 os_memoryCopy(pAPConnection->hOs, tsfTimeStamp, newTsfTimestamp, TIME_STAMP_LEN);
2028 }
2029 #endif
2030
2031
2032 /**
2033 *
2034 * apConn_invokeConnectionToNewAp
2035 *
2036 * \b Description:
2037 *
2038 * Got CCKM (hand-off), start re-connection to another AP
2039 *
2040 * \b ARGS:
2041 *
2042 * I - pData - pointer to AP Connection context\n
2043 *
2044 * \b RETURNS:
2045 *
2046 * TI_OK on success, TI_NOK otherwise.
2047 *
2048 * \sa
2049 */
apConn_invokeConnectionToNewAp(void * data)2050 static TI_STATUS apConn_invokeConnectionToNewAp(void *data)
2051 {
2052 apConn_t *pAPConnection;
2053 EConnType connType;
2054 paramInfo_t param;
2055 TI_UINT8 staPrivacySupported, apPrivacySupported;
2056 TI_BOOL renegotiateTspec = TI_FALSE;
2057
2058 pAPConnection = (apConn_t *)data;
2059
2060 pAPConnection->roamingStartedTimestamp = os_timeStampMs(pAPConnection->hOs);
2061
2062 /* Check privacy compatibility */
2063 param.paramType = RSN_ENCRYPTION_STATUS_PARAM;
2064 rsn_getParam(pAPConnection->hPrivacy, ¶m);
2065
2066 staPrivacySupported = (param.content.rsnEncryptionStatus == TWD_CIPHER_NONE) ? TI_FALSE : TI_TRUE;
2067 apPrivacySupported = ((pAPConnection->newAP->capabilities >> CAP_PRIVACY_SHIFT) & CAP_PRIVACY_MASK) ? TI_TRUE : TI_FALSE;
2068
2069 if (staPrivacySupported != apPrivacySupported)
2070 {
2071 param.paramType = RSN_MIXED_MODE;
2072 rsn_getParam(pAPConnection->hPrivacy, ¶m);
2073
2074 if (apPrivacySupported ||
2075 (!param.content.rsnMixedMode && staPrivacySupported))
2076 {
2077 TRACE2(pAPConnection->hReport, REPORT_SEVERITY_WARNING, ": failed privacy comparison %d vs. %d\n", staPrivacySupported, apPrivacySupported);
2078 return (apConn_smEvent(&(pAPConnection->currentState), AP_CONNECT_EVENT_FINISHED_NOT_OK, pAPConnection));
2079 }
2080 }
2081
2082 /* Update data info of desired AP; in case of first attempt to roam,
2083 store previous primary site info */
2084 if (siteMgr_overwritePrimarySite(pAPConnection->hSiteMgr, pAPConnection->newAP, pAPConnection->firstAttempt2Roam) != TI_OK)
2085 {
2086 TRACE0(pAPConnection->hReport, REPORT_SEVERITY_WARNING, ": failed to ovewrite Primary Site\n");
2087 return (apConn_smEvent(&(pAPConnection->currentState), AP_CONNECT_EVENT_FINISHED_NOT_OK, pAPConnection));
2088 }
2089
2090 /* Update re-associate parameter of MLME */
2091 if (pAPConnection->requestType == AP_CONNECT_FAST_TO_AP)
2092 {
2093 connType = CONN_TYPE_ROAM;
2094 }
2095 else
2096 {
2097 connType = CONN_TYPE_FIRST_CONN;
2098 }
2099
2100 #ifdef XCC_MODULE_INCLUDED
2101 /* Check the need in TSPEC re-negotiation */
2102 if ( (pAPConnection->voiceTspecConfigured || pAPConnection->videoTspecConfigured) && pAPConnection->reNegotiateTSPEC )
2103 {
2104 /* If the candidate AP is at least XCCver4 AP, try to re-negotiate TSPECs */
2105 if (XCCMngr_parseXCCVer(pAPConnection->hXCCMngr,
2106 pAPConnection->newAP->pBuffer,
2107 pAPConnection->newAP->bufferLength) >= 4)
2108 {
2109 renegotiateTspec = TI_TRUE;
2110 }
2111 }
2112 #endif
2113
2114 TRACE2(pAPConnection->hReport, REPORT_SEVERITY_INFORMATION, ": calls conn_start, removeKeys=%d, renegotiateTSPEC=%d\n", pAPConnection->removeKeys, renegotiateTspec);
2115
2116 /* Start Connection state machine */
2117 return conn_start(pAPConnection->hConnSm,
2118 connType,
2119 apConn_ConnCompleteInd,
2120 pAPConnection,
2121 pAPConnection->removeKeys,
2122 renegotiateTspec);
2123 }
2124
2125
2126 /**
2127 *
2128 * apConn_reportConnFail
2129 *
2130 * \b Description:
2131 *
2132 * Got 'Failed' indication from Connection state machine - inform Roaming Manager Module
2133 *
2134 * \b ARGS:
2135 *
2136 * I - pData - pointer to AP Connection context\n
2137 *
2138 * \b RETURNS:
2139 *
2140 * TI_OK on success, TI_NOK otherwise.
2141 *
2142 * \sa
2143 */
apConn_reportConnFail(void * data)2144 static TI_STATUS apConn_reportConnFail(void *data)
2145 {
2146 apConn_t *pAPConnection;
2147 apConn_connStatus_t reportStatus;
2148 paramInfo_t param;
2149
2150 pAPConnection = (apConn_t *)data;
2151
2152 pAPConnection->firstAttempt2Roam = TI_FALSE;
2153 pAPConnection->resetReportedRoamingStatistics = TI_FALSE;
2154
2155 /* Erase vendor specific info-element if was defined for last AP Assoc request */
2156 pAPConnection->vsIElength = 0;
2157
2158 /* Report to Roaming Manager */
2159 if (pAPConnection->reportStatusCallb != NULL)
2160 {
2161 param.paramType = ASSOC_ASSOCIATION_REQ_PARAM;
2162
2163 assoc_getParam(pAPConnection->hAssoc, ¶m);
2164 reportStatus.dataBuf = (char *)(param.content.assocReqBuffer.buffer);
2165 reportStatus.dataBufLength = param.content.assocReqBuffer.bufferSize;
2166
2167 reportStatus.status = CONN_STATUS_HANDOVER_FAILURE;
2168
2169 pAPConnection->reportStatusCallb(pAPConnection->hRoamMng, &reportStatus);
2170 }
2171
2172 return TI_OK;
2173 }
2174
2175
2176 /**
2177 *
2178 * apConn_configureSCR
2179 *
2180 * \b Description:
2181 *
2182 * Got 'Failed' indication from Connection state machine - inform Roaming Manager Module
2183 *
2184 * \b ARGS:
2185 *
2186 * I - pData - pointer to AP Connection context\n
2187 *
2188 * \b RETURNS:
2189 *
2190 * TI_OK on success, TI_NOK otherwise.
2191 *
2192 * \sa
2193 */
apConn_configureDriverBeforeRoaming(void * pData)2194 static TI_STATUS apConn_configureDriverBeforeRoaming(void *pData)
2195 {
2196 apConn_t *pAPConnection = (apConn_t*)pData;
2197 paramInfo_t param;
2198
2199 /* Configure SCR group of allowed clients according to 'Roaming' rule */
2200 scr_setGroup (pAPConnection->hScr, SCR_GID_ROAMING);
2201 param.paramType = QOS_MNGR_VOICE_RE_NEGOTIATE_TSPEC;
2202 qosMngr_getParams(pAPConnection->hQos, ¶m);
2203 pAPConnection->voiceTspecConfigured = param.content.TspecConfigure.voiceTspecConfigure;
2204 pAPConnection->videoTspecConfigured = param.content.TspecConfigure.videoTspecConfigure;
2205 pAPConnection->resetReportedRoamingStatistics = TI_FALSE;
2206 return TI_OK;
2207 }
2208
2209
2210 /**
2211 *
2212 * apConn_swChFinished
2213 *
2214 * \b Description:
2215 *
2216 * Switch channel completed; if there were roaming Manager triggers meanwhile,
2217 * inform Roaming Manager Module
2218 *
2219 * \b ARGS:
2220 *
2221 * I - pData - pointer to AP Connection context\n
2222 *
2223 * \b RETURNS:
2224 *
2225 * TI_OK on success, TI_NOK otherwise.
2226 *
2227 * \sa
2228 */
apConn_swChFinished(void * pData)2229 static TI_STATUS apConn_swChFinished(void *pData)
2230 {
2231 apConn_t *pAPConnection = (apConn_t *)pData;
2232
2233 /* Inform Current BSS module */
2234 currBSS_restartRssiCounting(pAPConnection->hCurrBSS);
2235
2236 /* If there are unreported roaming triggers of 'No AP' type,
2237 report them now to roaming manager */
2238 if (pAPConnection->roamReason >= ROAMING_TRIGGER_MAX_TX_RETRIES)
2239 {
2240 if ((pAPConnection->roamingEnabled == TI_TRUE) &&
2241 (pAPConnection->roamEventCallb != NULL))
2242 {
2243 /* Report to Roaming Manager */
2244 pAPConnection->roamEventCallb(pAPConnection->hRoamMng, &pAPConnection->roamReason, (TI_UINT16)0);
2245 }
2246 }
2247 else
2248 {
2249 pAPConnection->roamReason = ROAMING_TRIGGER_NONE;
2250 }
2251
2252 return TI_OK;
2253 }
2254
2255
2256 /**
2257 *
2258 * apConn_handleTspecReneg
2259 *
2260 * \b Description:
2261 *
2262 * This function will be called when moving from CONNECTING state to
2263 * START_TSPEC_RENEGOTIATION state. It checks if TSPEC re-negotiation was requested
2264 * by roaming manager, if the TSPEC for voice was defined by user application,
2265 * if the re-negotiation was performed during hand-over.
2266 * If so, it will trigger moving to WAIT_ROAM state, otherwise it will start
2267 * TSPEC negotiation, staying in the REESTABLISHING_VOICE state and waiting
2268 * for results.
2269 *
2270 * \b ARGS:
2271 *
2272 * I - pData - pointer to AP Connection context\n
2273 *
2274 * \b RETURNS:
2275 *
2276 * TI_OK on success, TI_NOK otherwise.
2277 *
2278 * \sa
2279 */
apConn_handleTspecReneg(void * pData)2280 static TI_STATUS apConn_handleTspecReneg (void *pData)
2281 {
2282 apConn_t *pAPConnection = (apConn_t *)pData;
2283 paramInfo_t param;
2284
2285 if (pAPConnection->voiceTspecConfigured && pAPConnection->reNegotiateTSPEC)
2286 {
2287 param.paramType = QOS_MNGR_VOICE_RE_NEGOTIATE_TSPEC;
2288 qosMngr_getParams(pAPConnection->hQos, ¶m);
2289
2290 if (param.content.TspecConfigure.voiceTspecConfigure == TI_TRUE)
2291 {
2292 /* TSPEC is already configured, move to CONNECTED */
2293 return apConn_smEvent(&(pAPConnection->currentState), AP_CONNECT_EVENT_FINISHED_OK, pAPConnection);
2294 }
2295 else
2296 {
2297 param.paramType = QOS_MNGR_RESEND_TSPEC_REQUEST;
2298 param.content.qosRenegotiateTspecRequest.callback = (void *)apConn_qosMngrReportResultCallb;
2299 param.content.qosRenegotiateTspecRequest.handler = pData;
2300
2301 if (qosMngr_setParams(pAPConnection->hQos, ¶m) != TI_OK)
2302 {
2303 /* Re-negotiation of TSPEC cannot be performed */
2304 return apConn_smEvent(&(pAPConnection->currentState), AP_CONNECT_EVENT_FINISHED_NOT_OK, pAPConnection);
2305 }
2306 return TI_OK;
2307 }
2308 }
2309 else
2310 {
2311 /* No need to re-negotiate TSPEC, move to CONNECTED */
2312 return apConn_smEvent(&(pAPConnection->currentState), AP_CONNECT_EVENT_FINISHED_OK, pAPConnection);
2313 }
2314 }
2315
2316
2317 /**
2318 *
2319 * apConn_qosMngrReportResultCallb
2320 *
2321 * \b Description:
2322 *
2323 * This function will be transferred to QoS manager upon request to start negotiation
2324 * of the TSPEC for voice and signaling, and will be called when the voice TSPEC
2325 * renegotiation is completed. The function will generate FINISHED_OK or
2326 * FINISHED_NOK events to the state machine of AP Connection, triggering change of
2327 * the current state.
2328 *
2329 * \b ARGS:
2330 *
2331 * I - hApConn - pointer to AP Connection context\n
2332 * I - result - returned by Traffic admission control\n
2333 *
2334 * \b RETURNS:
2335 *
2336 * TI_OK on success, TI_NOK otherwise.
2337 *
2338 * \sa
2339 */
apConn_qosMngrReportResultCallb(TI_HANDLE hApConn,trafficAdmRequestStatus_e result)2340 static TI_STATUS apConn_qosMngrReportResultCallb (TI_HANDLE hApConn, trafficAdmRequestStatus_e result)
2341 {
2342 apConn_t *pAPConnection = (apConn_t *)hApConn;
2343
2344 AP_CONN_VALIDATE_HANDLE(hApConn);
2345
2346 if (result == STATUS_TRAFFIC_ADM_REQUEST_ACCEPT)
2347 {
2348 apConn_smEvent(&(pAPConnection->currentState), AP_CONNECT_EVENT_FINISHED_OK, pAPConnection);
2349 }
2350 else
2351 {
2352 apConn_smEvent(&(pAPConnection->currentState), AP_CONNECT_EVENT_FINISHED_NOT_OK, pAPConnection);
2353 }
2354 return TI_OK;
2355 }
2356
2357 /**
2358 *
2359 * apConn_reportConnStatusToSME
2360 *
2361 * \b Description:
2362 *
2363 * Sends report to SME regarding the connection status
2364 *
2365 * \b ARGS:
2366 *
2367 * I - pAPConnection - pointer to AP Connection context\n
2368 *
2369 * \b RETURNS:
2370 *
2371 * OK on success, NOK otherwise.
2372 *
2373 * \sa
2374 */
apConn_reportConnStatusToSME(apConn_t * pAPConnection)2375 static void apConn_reportConnStatusToSME (apConn_t *pAPConnection)
2376 {
2377
2378 TRACE3(pAPConnection->hReport, REPORT_SEVERITY_INFORMATION, " roamingTrigger = %d, APDisconnectStatusCode = %d, bNonRoamingDisAssocReason = %d\n", pAPConnection->roamReason, pAPConnection->APDisconnect.uStatusCode, pAPConnection->bNonRoamingDisAssocReason);
2379
2380 /* Check if an outside reason caused the disconnection. */
2381 if (pAPConnection->bNonRoamingDisAssocReason)
2382 {
2383 pAPConnection->bNonRoamingDisAssocReason = TI_FALSE;
2384 sme_ReportApConnStatus(pAPConnection->hSme, STATUS_UNSPECIFIED, 0);
2385 }
2386 /* DisAssociation happened due to roaming trigger */
2387 else if (pAPConnection->roamReason == ROAMING_TRIGGER_AP_DISCONNECT)
2388 { /* AP disconnect is a special case of the status delivered to SME */
2389 mgmtStatus_e mgmtStatus = ( pAPConnection->APDisconnect.bDeAuthenticate ? STATUS_AP_DEAUTHENTICATE : STATUS_AP_DISASSOCIATE );
2390 sme_ReportApConnStatus(pAPConnection->hSme, mgmtStatus, pAPConnection->APDisconnect.uStatusCode);
2391 }
2392 else /* Finally, just send the last roaming trigger */
2393 {
2394 sme_ReportApConnStatus(pAPConnection->hSme, STATUS_ROAMING_TRIGGER, (TI_UINT32)pAPConnection->roamReason);
2395 }
2396 }
2397
2398
apConn_setDeauthPacketReasonCode(TI_HANDLE hAPConnection,TI_UINT8 deauthReasonCode)2399 void apConn_setDeauthPacketReasonCode(TI_HANDLE hAPConnection, TI_UINT8 deauthReasonCode)
2400 {
2401 apConn_t *pAPConnection = (apConn_t *)hAPConnection;
2402
2403 pAPConnection->deauthPacketReasonCode = deauthReasonCode;
2404 pAPConnection->roamReason = ROAMING_TRIGGER_SECURITY_ATTACK;
2405 }
2406