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import PULS_20160108
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / misc / mediatek / connectivity / conn_soc / drv_wlan / mt_wifi / wlan / mgmt / wapi.c
CommitLineData
6fa3eb70
S		 1/*
2** $Id: //Department/DaVinci/BRANCHES/MT6620_WIFI_DRIVER_V2_3/mgmt/wapi.c#1 $
3*/
4
5/*! \file "wapi.c"
6 \brief This file including the WAPI related function.
7
8 This file provided the macros and functions library support the wapi ie parsing,
9 cipher and AKM check to help the AP seleced deciding.
10*/
11
12
13
14/*
15** $Log: wapi.c $
16**
17** 10 24 2012 wh.su
18** [ALPS00376392] [klocwork 9.1] in wapi.c, line 344
19** Use MAX_NUM_SUPPORTED_WAPI_AKM_SUITESfor avoid Klocwork warning.
20**
21** 10 24 2012 wh.su
22** [ALPS00376391] [klocwork 9.1] in wapi.c, line 311
23** Use the MAX_NUM_SUPPORTED_WAPI_CIPHER_SUITES for avoid Klccwork waring.
24 *
25 * 11 10 2011 wh.su
26 * [WCXRP00001078] [MT6620 Wi-Fi][Driver] Adding the mediatek log improment support : XLOG
27 * change the debug module level.
28 *
29 * 10 20 2010 wh.su
30 * [WCXRP00000067] [MT6620 Wi-Fi][Driver] Support the android+ WAPI function
31 * fixed the network type
32 *
33 * 09 01 2010 wh.su
34 * NULL
35 * adding the wapi support for integration test.
36 *
37 * 07 20 2010 wh.su
38 *
39 * .
40 *
41 * 04 06 2010 wh.su
42 * [BORA00000680][MT6620] Support the statistic for Micxxsoft os query
43 * fixed the firmware return the broadcast frame at wrong tc.
44 *
45 * 03 03 2010 wh.su
46 * [BORA00000637][MT6620 Wi-Fi] [Bug] WPA2 pre-authentication timer not correctly initialize
47 * move the AIS specific variable for security to AIS specific structure.
48 *
49 * 12 18 2009 cm.chang
50 * [BORA00000018]Integrate WIFI part into BORA for the 1st time
51 * .
52 *
53 * Dec 8 2009 mtk01088
54 * [BORA00000476] [Wi-Fi][firmware] Add the security module initialize code
55 * adding the function to check and update the default wapi tx
56 *
57 * Dec 7 2009 mtk01088
58 * [BORA00000476] [Wi-Fi][firmware] Add the security module initialize code
59 * adding the generate wapi ie function, and replace the tabe by space
60 *
61 * Nov 23 2009 mtk01088
62 * [BORA00000476] [Wi-Fi][firmware] Add the security module initialize code
63 *
64*/
65
66/*******************************************************************************
67* C O M P I L E R F L A G S
68********************************************************************************
69*/
70
71/*******************************************************************************
72* E X T E R N A L R E F E R E N C E S
73********************************************************************************
74*/
75
76#include "precomp.h"
77#if CFG_SUPPORT_WAPI
78
79/*******************************************************************************
80* C O N S T A N T S
81********************************************************************************
82*/
83
84/*******************************************************************************
85* D A T A T Y P E S
86********************************************************************************
87*/
88
89/*******************************************************************************
90* P U B L I C D A T A
91********************************************************************************
92*/
93
94/*******************************************************************************
95* P R I V A T E D A T A
96********************************************************************************
97*/
98
99/*******************************************************************************
100* M A C R O S
101********************************************************************************
102*/
103
104/*******************************************************************************
105* F U N C T I O N D E C L A R A T I O N S
106********************************************************************************
107*/
108
109/*******************************************************************************
110* F U N C T I O N S
111********************************************************************************
112*/
113
114/*----------------------------------------------------------------------------*/
115/*!
116*
117* \brief This routine is called to generate WPA IE for
118* associate request frame.
119*
120* \param[in] prCurrentBss The Selected BSS description
121*
122* \retval The append WPA IE length
123*
124* \note
125* Called by: AIS module, Associate request
126*/
127/*----------------------------------------------------------------------------*/
128VOID
129wapiGenerateWAPIIE (
130 IN P_ADAPTER_T prAdapter,
131 IN P_MSDU_INFO_T prMsduInfo
132 )
133{
134 PUINT_8 pucBuffer;
135
136 ASSERT(prAdapter);
137 ASSERT(prMsduInfo);
138
139 if (prMsduInfo->ucNetworkType != NETWORK_TYPE_AIS_INDEX)
140 return;
141
142 pucBuffer = (PUINT_8)((ULONG)prMsduInfo->prPacket +
143 prMsduInfo->u2FrameLength);
144
145 /* ASSOC INFO IE ID: 68 :0x44 */
146 if (/* prWlanInfo->fgWapiMode && */ prAdapter->prGlueInfo->u2WapiAssocInfoIESz) {
147 kalMemCopy(pucBuffer, &prAdapter->prGlueInfo->aucWapiAssocInfoIEs, prAdapter->prGlueInfo->u2WapiAssocInfoIESz);
148 prMsduInfo->u2FrameLength += prAdapter->prGlueInfo->u2WapiAssocInfoIESz;
149 }
150
151}
152
153
154/*----------------------------------------------------------------------------*/
155/*!
156* \brief This routine is called to parse WAPI IE.
157*
158* \param[in] prInfoElem Pointer to the RSN IE
159* \param[out] prRsnInfo Pointer to the BSSDescription structure to store the
160** WAPI information from the given WAPI IE
161*
162* \retval TRUE - Succeeded
163* \retval FALSE - Failed
164*/
165/*----------------------------------------------------------------------------*/
166BOOLEAN
167wapiParseWapiIE (
168 IN P_WAPI_INFO_ELEM_T prInfoElem,
169 OUT P_WAPI_INFO_T prWapiInfo
170 )
171{
172 UINT_32 i;
173 INT_32 u4RemainWapiIeLen;
174 UINT_16 u2Version;
175 UINT_16 u2Cap = 0;
176 UINT_32 u4GroupSuite = WAPI_CIPHER_SUITE_WPI;
177 UINT_16 u2PairSuiteCount = 0;
178 UINT_16 u2AuthSuiteCount = 0;
179 PUCHAR pucPairSuite = NULL;
180 PUCHAR pucAuthSuite = NULL;
181 PUCHAR cp;
182
183 DEBUGFUNC("wapiParseWapiIE");
184
185 ASSERT(prInfoElem);
186 ASSERT(prWapiInfo);
187
188 /* Verify the length of the WAPI IE. */
189 if (prInfoElem->ucLength < 6) {
190 DBGLOG(SEC, TRACE, ("WAPI IE length too short (length=%d)\n", prInfoElem->ucLength));
191 return FALSE;
192 }
193
194 /* Check WAPI version: currently, we only support version 1. */
195 WLAN_GET_FIELD_16(&prInfoElem->u2Version, &u2Version);
196 if (u2Version != 1) {
197 DBGLOG(SEC, TRACE, ("Unsupported WAPI IE version: %d\n", u2Version));
198 return FALSE;
199 }
200
201 cp = (PUCHAR) &prInfoElem->u2AuthKeyMgtSuiteCount;
202 u4RemainWapiIeLen = (INT_32) prInfoElem->ucLength - 2;
203
204 do {
205 if (u4RemainWapiIeLen == 0) {
206 break;
207 }
208
209 /*
210 AuthCount : 2
211 AuthSuite : 4 * authSuiteCount
212 PairwiseCount: 2
213 PairwiseSuite: 4 * pairSuiteCount
214 GroupSuite : 4
215 Cap : 2 */
216
217 /* Parse the Authentication and Key Management Cipher Suite Count
218 field. */
219 if (u4RemainWapiIeLen < 2) {
220 DBGLOG(SEC, TRACE, ("Fail to parse WAPI IE in auth & key mgt suite count (IE len: %d)\n",
221 prInfoElem->ucLength));
222 return FALSE;
223 }
224
225 WLAN_GET_FIELD_16(cp, &u2AuthSuiteCount);
226 cp += 2;
227 u4RemainWapiIeLen -= 2;
228
229 /* Parse the Authentication and Key Management Cipher Suite List
230 field. */
231 i = (UINT_32) u2AuthSuiteCount * 4;
232 if (u4RemainWapiIeLen < (INT_32) i) {
233 DBGLOG(SEC, TRACE, ("Fail to parse WAPI IE in auth & key mgt suite list (IE len: %d)\n",
234 prInfoElem->ucLength));
235 return FALSE;
236 }
237
238 pucAuthSuite = cp;
239
240 cp += i;
241 u4RemainWapiIeLen -= (INT_32) i;
242
243 if (u4RemainWapiIeLen == 0) {
244 break;
245 }
246
247 /* Parse the Pairwise Key Cipher Suite Count field. */
248 if (u4RemainWapiIeLen < 2) {
249 DBGLOG(SEC, TRACE, ("Fail to parse WAPI IE in pairwise cipher suite count (IE len: %d)\n",
250 prInfoElem->ucLength));
251 return FALSE;
252 }
253
254 WLAN_GET_FIELD_16(cp, &u2PairSuiteCount);
255 cp += 2;
256 u4RemainWapiIeLen -= 2;
257
258 /* Parse the Pairwise Key Cipher Suite List field. */
259 i = (UINT_32) u2PairSuiteCount * 4;
260 if (u4RemainWapiIeLen < (INT_32) i) {
261 DBGLOG(SEC, TRACE, ("Fail to parse WAPI IE in pairwise cipher suite list (IE len: %d)\n",
262 prInfoElem->ucLength));
263 return FALSE;
264 }
265
266 pucPairSuite = cp;
267
268 cp += i;
269 u4RemainWapiIeLen -= (INT_32) i;
270
271 /* Parse the Group Key Cipher Suite field. */
272 if (u4RemainWapiIeLen < 4) {
273 DBGLOG(SEC, TRACE, ("Fail to parse WAPI IE in group cipher suite (IE len: %d)\n",
274 prInfoElem->ucLength));
275 return FALSE;
276 }
277
278 WLAN_GET_FIELD_32(cp, &u4GroupSuite);
279 cp += 4;
280 u4RemainWapiIeLen -= 4;
281
282 /* Parse the WAPI u2Capabilities field. */
283 if (u4RemainWapiIeLen < 2) {
284 DBGLOG(SEC, TRACE, ("Fail to parse WAPI IE in WAPI capabilities (IE len: %d)\n",
285 prInfoElem->ucLength));
286 return FALSE;
287 }
288
289 WLAN_GET_FIELD_16(cp, &u2Cap);
290 u4RemainWapiIeLen -= 2;
291
292 /* Todo:: BKID support */
293 } while (FALSE);
294
295 /* Save the WAPI information for the BSS. */
296
297 prWapiInfo->ucElemId = ELEM_ID_WAPI;
298
299 prWapiInfo->u2Version = u2Version;
300
301 prWapiInfo->u4GroupKeyCipherSuite = u4GroupSuite;
302
303 DBGLOG(SEC, LOUD, ("WAPI: version %d, group key cipher suite %02x-%02x-%02x-%02x\n",
304 u2Version, (UCHAR) (u4GroupSuite & 0x000000FF),
305 (UCHAR) ((u4GroupSuite >> 8) & 0x000000FF),
306 (UCHAR) ((u4GroupSuite >> 16) & 0x000000FF),
307 (UCHAR) ((u4GroupSuite >> 24) & 0x000000FF)));
308
309 if (pucPairSuite) {
310 /* The information about the pairwise key cipher suites is present. */
311 if (u2PairSuiteCount > MAX_NUM_SUPPORTED_WAPI_CIPHER_SUITES) {
312 u2PairSuiteCount = MAX_NUM_SUPPORTED_WAPI_CIPHER_SUITES;
313 }
314
315 prWapiInfo->u4PairwiseKeyCipherSuiteCount = (UINT_32) u2PairSuiteCount;
316
317 for (i = 0; i < (UINT_32) u2PairSuiteCount; i++) {
318 WLAN_GET_FIELD_32(pucPairSuite,
319 &prWapiInfo->au4PairwiseKeyCipherSuite[i]);
320 pucPairSuite += 4;
321
322 DBGLOG(SEC, LOUD,("WAPI: pairwise key cipher suite [%d]: %02x-%02x-%02x-%02x\n",
323 (UINT_8)i, (UCHAR) (prWapiInfo->au4PairwiseKeyCipherSuite[i] & 0x000000FF),
324 (UCHAR) ((prWapiInfo->au4PairwiseKeyCipherSuite[i] >> 8) & 0x000000FF),
325 (UCHAR) ((prWapiInfo->au4PairwiseKeyCipherSuite[i] >> 16) & 0x000000FF),
326 (UCHAR) ((prWapiInfo->au4PairwiseKeyCipherSuite[i] >> 24) & 0x000000FF)));
327 }
328 }
329 else {
330 /* The information about the pairwise key cipher suites is not present.
331 Use the default chipher suite for WAPI: WPI. */
332 prWapiInfo->u4PairwiseKeyCipherSuiteCount = 1;
333 prWapiInfo->au4PairwiseKeyCipherSuite[0] = WAPI_CIPHER_SUITE_WPI;
334
335 DBGLOG(SEC, LOUD, ("WAPI: pairwise key cipher suite: %02x-%02x-%02x-%02x (default)\n",
336 (UCHAR) (prWapiInfo->au4PairwiseKeyCipherSuite[0] & 0x000000FF),
337 (UCHAR) ((prWapiInfo->au4PairwiseKeyCipherSuite[0] >> 8) & 0x000000FF),
338 (UCHAR) ((prWapiInfo->au4PairwiseKeyCipherSuite[0] >> 16) & 0x000000FF),
339 (UCHAR) ((prWapiInfo->au4PairwiseKeyCipherSuite[0] >> 24) & 0x000000FF)));
340 }
341
342 if (pucAuthSuite) {
343 /* The information about the authentication and key management suites
344 is present. */
345 if (u2AuthSuiteCount > MAX_NUM_SUPPORTED_WAPI_AKM_SUITES) {
346 u2AuthSuiteCount = MAX_NUM_SUPPORTED_WAPI_AKM_SUITES;
347 }
348
349 prWapiInfo->u4AuthKeyMgtSuiteCount = (UINT_32) u2AuthSuiteCount;
350
351 for (i = 0; i < (UINT_32) u2AuthSuiteCount; i++) {
352 WLAN_GET_FIELD_32(pucAuthSuite, &prWapiInfo->au4AuthKeyMgtSuite[i]);
353 pucAuthSuite += 4;
354
355 DBGLOG(SEC, LOUD, ("WAPI: AKM suite [%d]: %02x-%02x-%02x-%02x\n",
356 (UINT_8)i, (UCHAR) (prWapiInfo->au4AuthKeyMgtSuite[i] & 0x000000FF),
357 (UCHAR) ((prWapiInfo->au4AuthKeyMgtSuite[i] >> 8) & 0x000000FF),
358 (UCHAR) ((prWapiInfo->au4AuthKeyMgtSuite[i] >> 16) & 0x000000FF),
359 (UCHAR) ((prWapiInfo->au4AuthKeyMgtSuite[i] >> 24) & 0x000000FF)));
360 }
361 }
362 else {
363 /* The information about the authentication and key management suites
364 is not present. Use the default AKM suite for WAPI. */
365 prWapiInfo->u4AuthKeyMgtSuiteCount = 1;
366 prWapiInfo->au4AuthKeyMgtSuite[0] = WAPI_AKM_SUITE_802_1X;
367
368 DBGLOG(SEC, LOUD, ("WAPI: AKM suite: %02x-%02x-%02x-%02x (default)\n",
369 (UCHAR) (prWapiInfo->au4AuthKeyMgtSuite[0] & 0x000000FF),
370 (UCHAR) ((prWapiInfo->au4AuthKeyMgtSuite[0] >> 8) & 0x000000FF),
371 (UCHAR) ((prWapiInfo->au4AuthKeyMgtSuite[0] >> 16) & 0x000000FF),
372 (UCHAR) ((prWapiInfo->au4AuthKeyMgtSuite[0] >> 24) & 0x000000FF)));
373 }
374
375 prWapiInfo->u2WapiCap = u2Cap;
376 DBGLOG(SEC, LOUD, ("WAPI: cap: 0x%04x\n", prWapiInfo->u2WapiCap));
377
378 return TRUE;
379} /* wapiParseWapiIE */
380
381
382/*----------------------------------------------------------------------------*/
383/*!
384* \brief This routine is called to perform WAPI policy selection for a given BSS.
385*
386* \param[in] prAdapter Pointer to the adapter object data area.
387* \param[in] prBss Pointer to the BSS description
388*
389* \retval TRUE - The WAPI policy selection for the given BSS is
390* successful. The selected pairwise and group cipher suites
391* are returned in the BSS description.
392* \retval FALSE - The WAPI policy selection for the given BSS is failed.
393* The driver shall not attempt to join the given BSS.
394*
395* \note The Encrypt status matched score will save to bss for final ap select.
396*/
397/*----------------------------------------------------------------------------*/
398BOOLEAN
399wapiPerformPolicySelection (
400 IN P_ADAPTER_T prAdapter,
401 IN P_BSS_DESC_T prBss
402 )
403{
404 UINT_32 i;
405 UINT_32 u4PairwiseCipher = 0;
406 UINT_32 u4GroupCipher = 0;
407 UINT_32 u4AkmSuite = 0;
408 P_WAPI_INFO_T prBssWapiInfo;
409 P_WLAN_INFO_T prWlanInfo;
410
411 DEBUGFUNC("wapiPerformPolicySelection");
412
413 ASSERT(prBss);
414
415 /* Notice!!!! WAPI AP not set the privacy bit for WAI and WAI-PSK at WZC configuration mode */
416 prWlanInfo = &prAdapter->rWlanInfo;
417
418 if (prBss->fgIEWAPI) {
419 prBssWapiInfo = &prBss->rIEWAPI;
420 }
421 else {
422 if (prAdapter->rWifiVar.rConnSettings.fgWapiMode == FALSE) {
423 DBGLOG(SEC, TRACE,("-- No Protected BSS\n"));
424 return TRUE;
425 }
426 else {
427 DBGLOG(SEC, TRACE, ("WAPI Information Element does not exist.\n"));
428 return FALSE;
429 }
430 }
431
432 /* Select pairwise/group ciphers */
433 for (i = 0; i < prBssWapiInfo->u4PairwiseKeyCipherSuiteCount; i++) {
434 if (prBssWapiInfo->au4PairwiseKeyCipherSuite[i] ==
435 prAdapter->rWifiVar.rConnSettings.u4WapiSelectedPairwiseCipher) {
436 u4PairwiseCipher = prBssWapiInfo->au4PairwiseKeyCipherSuite[i];
437 }
438 }
439 if (prBssWapiInfo->u4GroupKeyCipherSuite ==
440 prAdapter->rWifiVar.rConnSettings.u4WapiSelectedGroupCipher)
441 u4GroupCipher = prBssWapiInfo->u4GroupKeyCipherSuite;
442
443 /* Exception handler */
444 /* If we cannot find proper pairwise and group cipher suites to join the
445 BSS, do not check the supported AKM suites. */
446 if (u4PairwiseCipher == 0 || u4GroupCipher == 0) {
447 DBGLOG(SEC, TRACE, ("Failed to select pairwise/group cipher (0x%08x/0x%08x)\n",
448 u4PairwiseCipher, u4GroupCipher));
449 return FALSE;
450 }
451
452 /* Select AKM */
453 /* If the driver cannot support any authentication suites advertised in
454 the given BSS, we fail to perform RSNA policy selection. */
455 /* Attempt to find any overlapping supported AKM suite. */
456 for (i = 0; i < prBssWapiInfo->u4AuthKeyMgtSuiteCount; i++) {
457 if (prBssWapiInfo->au4AuthKeyMgtSuite[i] == prAdapter->rWifiVar.rConnSettings.u4WapiSelectedAKMSuite) {
458 u4AkmSuite = prBssWapiInfo->au4AuthKeyMgtSuite[i];
459 break;
460 }
461 }
462
463 if (u4AkmSuite == 0) {
464 DBGLOG(SEC, TRACE, ("Cannot support any AKM suites\n"));
465 return FALSE;
466 }
467
468 DBGLOG(SEC, TRACE, ("Selected pairwise/group cipher: %02x-%02x-%02x-%02x/%02x-%02x-%02x-%02x\n",
469 (UINT_8) (u4PairwiseCipher & 0x000000FF),
470 (UINT_8) ((u4PairwiseCipher >> 8) & 0x000000FF),
471 (UINT_8) ((u4PairwiseCipher >> 16) & 0x000000FF),
472 (UINT_8) ((u4PairwiseCipher >> 24) & 0x000000FF),
473 (UINT_8) (u4GroupCipher & 0x000000FF),
474 (UINT_8) ((u4GroupCipher >> 8) & 0x000000FF),
475 (UINT_8) ((u4GroupCipher >> 16) & 0x000000FF),
476 (UINT_8) ((u4GroupCipher >> 24) & 0x000000FF)));
477
478 DBGLOG(SEC, TRACE, ("Selected AKM suite: %02x-%02x-%02x-%02x\n",
479 (UINT_8) (u4AkmSuite & 0x000000FF),
480 (UINT_8) ((u4AkmSuite >> 8) & 0x000000FF),
481 (UINT_8) ((u4AkmSuite >> 16) & 0x000000FF),
482 (UINT_8) ((u4AkmSuite >> 24) & 0x000000FF)));
483
484 return TRUE;
485} /* wapiPerformPolicySelection */
486
487#if 0
488/*----------------------------------------------------------------------------*/
489/*!
490* \brief This routine is use for wapi mode, to update the current wpi tx idx ? 0 :1 .
491*
492* \param[in] prStaRec Pointer to the Sta record
493* \param[out] ucWlanIdx The Rx status->wlanidx field
494*
495* \retval TRUE - Succeeded
496* \retval FALSE - Failed
497*/
498/*----------------------------------------------------------------------------*/
499BOOLEAN
500wapiUpdateTxKeyIdx (
501 IN P_STA_RECORD_T prStaRec,
502 IN UINT_8 ucWlanIdx
503 )
504{
505 UINT_8 ucKeyId;
506
507 if ((ucWlanIdx & BITS(0, 3)) == CIPHER_SUITE_WPI) {
508
509 ucKeyId = ((ucWlanIdx & BITS(4, 5)) >> 4);
510
511 if (ucKeyId != g_prWifiVar->rAisSpecificBssInfo.ucWpiActivedPWKey) {
512 DBGLOG(RSN, STATE, ("Change wapi key index from %d->%d\n", g_prWifiVar->rAisSpecificBssInfo.ucWpiActivedPWKey, ucKeyId));
513 g_prWifiVar->rAisSpecificBssInfo.ucWpiActivedPWKey = ucKeyId;
514
515 prStaRec->ucWTEntry =
516 (ucKeyId == WTBL_AIS_BSSID_WAPI_IDX_0) ? WTBL_AIS_BSSID_WAPI_IDX_0 : WTBL_AIS_BSSID_WAPI_IDX_1;
517 }
518 }
519}
520#endif
521#endif
522
kernel source for telekom puls (alcatel/mediatek)