Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 1 | /* |
Jeff Johnson | 32d95a3 | 2012-09-10 13:15:23 -0700 | [diff] [blame] | 2 | * Copyright (c) 2012, The Linux Foundation. All rights reserved. |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 3 | * |
| 4 | * Previously licensed under the ISC license by Qualcomm Atheros, Inc. |
| 5 | * |
| 6 | * |
| 7 | * Permission to use, copy, modify, and/or distribute this software for |
| 8 | * any purpose with or without fee is hereby granted, provided that the |
| 9 | * above copyright notice and this permission notice appear in all |
| 10 | * copies. |
| 11 | * |
| 12 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL |
| 13 | * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED |
| 14 | * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE |
| 15 | * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL |
| 16 | * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
| 17 | * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| 18 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| 19 | * PERFORMANCE OF THIS SOFTWARE. |
| 20 | */ |
| 21 | |
| 22 | /* |
| 23 | * |
| 24 | * Airgo Networks, Inc proprietary. All rights reserved. |
| 25 | * This file limSmeReqUtils.cc contains the utility functions |
| 26 | * for processing SME request messages. |
| 27 | * Author: Chandra Modumudi |
| 28 | * Date: 02/11/02 |
| 29 | * History:- |
| 30 | * Date Modified by Modification Information |
| 31 | * -------------------------------------------------------------------- |
| 32 | * 05/26/10 js WPA handling in (Re)Assoc frames |
| 33 | * |
| 34 | */ |
| 35 | |
| 36 | #include "wniApi.h" |
| 37 | #if (WNI_POLARIS_FW_PRODUCT == AP) |
| 38 | #include "wniCfgAp.h" |
| 39 | #else |
| 40 | #include "wniCfgSta.h" |
| 41 | #endif |
| 42 | #include "cfgApi.h" |
| 43 | #include "sirApi.h" |
| 44 | #include "schApi.h" |
| 45 | #include "utilsApi.h" |
| 46 | #include "limTypes.h" |
| 47 | #include "limUtils.h" |
| 48 | #include "limAssocUtils.h" |
| 49 | #include "limSecurityUtils.h" |
| 50 | #include "limSerDesUtils.h" |
| 51 | |
| 52 | |
| 53 | |
| 54 | /** |
| 55 | * limIsRSNieValidInSmeReqMessage() |
| 56 | * |
| 57 | *FUNCTION: |
| 58 | * This function is called to verify if the RSN IE |
| 59 | * received in various SME_REQ messages is valid or not |
| 60 | * |
| 61 | *LOGIC: |
| 62 | * RSN IE validity checks are performed in this function |
| 63 | * |
| 64 | *ASSUMPTIONS: |
| 65 | * |
| 66 | *NOTE: |
| 67 | * |
| 68 | * @param pMac Pointer to Global MAC structure |
| 69 | * @param pRSNie Pointer to received RSN IE |
| 70 | * @return true when RSN IE is valid, false otherwise |
| 71 | */ |
| 72 | |
| 73 | static tANI_U8 |
| 74 | limIsRSNieValidInSmeReqMessage(tpAniSirGlobal pMac, tpSirRSNie pRSNie) |
| 75 | { |
| 76 | tANI_U8 startPos = 0; |
| 77 | tANI_U32 privacy, val; |
| 78 | int len; |
| 79 | |
| 80 | if (wlan_cfgGetInt(pMac, WNI_CFG_PRIVACY_ENABLED, |
| 81 | &privacy) != eSIR_SUCCESS) |
| 82 | { |
| 83 | limLog(pMac, LOGP, |
| 84 | FL("Unable to retrieve POI from CFG\n")); |
| 85 | } |
| 86 | |
| 87 | if (wlan_cfgGetInt(pMac, WNI_CFG_RSN_ENABLED, |
| 88 | &val) != eSIR_SUCCESS) |
| 89 | { |
| 90 | limLog(pMac, LOGP, |
| 91 | FL("Unable to retrieve RSN_ENABLED from CFG\n")); |
| 92 | } |
| 93 | |
| 94 | if (pRSNie->length && (!privacy || !val)) |
| 95 | { |
| 96 | // Privacy & RSN not enabled in CFG. |
| 97 | /** |
| 98 | * In order to allow mixed mode for Guest access |
| 99 | * allow BSS creation/join with no Privacy capability |
| 100 | * yet advertising WPA IE |
| 101 | */ |
| 102 | PELOG1(limLog(pMac, LOG1, FL("RSN ie len %d but PRIVACY %d RSN %d\n"), |
| 103 | pRSNie->length, privacy, val);) |
| 104 | } |
| 105 | |
| 106 | if (pRSNie->length) |
| 107 | { |
| 108 | if ((pRSNie->rsnIEdata[0] != DOT11F_EID_RSN) && |
| 109 | (pRSNie->rsnIEdata[0] != DOT11F_EID_WPA) |
| 110 | #ifdef FEATURE_WLAN_WAPI |
| 111 | && (pRSNie->rsnIEdata[0] != DOT11F_EID_WAPI) |
| 112 | #endif |
| 113 | ) |
| 114 | { |
| 115 | limLog(pMac, LOGE, FL("RSN/WPA/WAPI EID %d not [%d || %d]\n"), |
| 116 | pRSNie->rsnIEdata[0], DOT11F_EID_RSN, |
| 117 | DOT11F_EID_WPA); |
| 118 | return false; |
| 119 | } |
| 120 | |
| 121 | len = pRSNie->length; |
| 122 | startPos = 0; |
| 123 | while(len > 0) |
| 124 | { |
| 125 | // Check validity of RSN IE |
| 126 | if (pRSNie->rsnIEdata[startPos] == DOT11F_EID_RSN) |
| 127 | { |
| 128 | if((pRSNie->rsnIEdata[startPos+1] > DOT11F_IE_RSN_MAX_LEN) || |
| 129 | (pRSNie->rsnIEdata[startPos+1] < DOT11F_IE_RSN_MIN_LEN)) |
| 130 | { |
| 131 | limLog(pMac, LOGE, FL("RSN IE len %d not [%d,%d]\n"), |
| 132 | pRSNie->rsnIEdata[startPos+1], DOT11F_IE_RSN_MIN_LEN, |
| 133 | DOT11F_IE_RSN_MAX_LEN); |
| 134 | return false; |
| 135 | } |
| 136 | } |
| 137 | else if(pRSNie->rsnIEdata[startPos] == DOT11F_EID_WPA) |
| 138 | { |
| 139 | // Check validity of WPA IE |
| 140 | val = sirReadU32((tANI_U8 *) &pRSNie->rsnIEdata[startPos + 2]); |
| 141 | if((pRSNie->rsnIEdata[startPos + 1] < DOT11F_IE_WPA_MIN_LEN) || |
| 142 | (pRSNie->rsnIEdata[startPos + 1] > DOT11F_IE_WPA_MAX_LEN) || |
| 143 | (SIR_MAC_WPA_OUI != val)) |
| 144 | { |
| 145 | limLog(pMac, LOGE, |
| 146 | FL("WPA IE len %d not [%d,%d] OR data 0x%x not 0x%x\n"), |
| 147 | pRSNie->rsnIEdata[startPos+1], DOT11F_IE_WPA_MIN_LEN, |
| 148 | DOT11F_IE_WPA_MAX_LEN, val, SIR_MAC_WPA_OUI); |
| 149 | |
| 150 | return false; |
| 151 | } |
| 152 | } |
| 153 | #ifdef FEATURE_WLAN_WAPI |
| 154 | else if(pRSNie->rsnIEdata[startPos] == DOT11F_EID_WAPI) |
| 155 | { |
| 156 | if((pRSNie->rsnIEdata[startPos+1] > DOT11F_IE_WAPI_MAX_LEN) || |
| 157 | (pRSNie->rsnIEdata[startPos+1] < DOT11F_IE_WAPI_MIN_LEN)) |
| 158 | { |
| 159 | limLog(pMac, LOGE, |
| 160 | FL("WAPI IE len %d not [%d,%d]\n"), |
| 161 | pRSNie->rsnIEdata[startPos+1], DOT11F_IE_WAPI_MIN_LEN, |
| 162 | DOT11F_IE_WAPI_MAX_LEN); |
| 163 | |
| 164 | return false; |
| 165 | } |
| 166 | } |
| 167 | #endif |
| 168 | else |
| 169 | { |
| 170 | //we will never be here, simply for completeness |
| 171 | return false; |
| 172 | } |
| 173 | startPos += 2 + pRSNie->rsnIEdata[startPos+1]; //EID + length field + length |
| 174 | len -= startPos; |
| 175 | }//while |
| 176 | |
| 177 | } |
| 178 | |
| 179 | return true; |
| 180 | } /*** end limIsRSNieValidInSmeReqMessage() ***/ |
| 181 | |
| 182 | /** |
| 183 | * limIsAddieValidInSmeReqMessage() |
| 184 | * |
| 185 | *FUNCTION: |
| 186 | * This function is called to verify if the Add IE |
| 187 | * received in various SME_REQ messages is valid or not |
| 188 | * |
| 189 | *LOGIC: |
| 190 | * Add IE validity checks are performed on only length |
| 191 | * |
| 192 | *ASSUMPTIONS: |
| 193 | * |
| 194 | *NOTE: |
| 195 | * |
| 196 | * @param pMac Pointer to Global MAC structure |
| 197 | * @param pWSCie Pointer to received WSC IE |
| 198 | * @return true when WSC IE is valid, false otherwise |
| 199 | */ |
| 200 | |
| 201 | static tANI_U8 |
| 202 | limIsAddieValidInSmeReqMessage(tpAniSirGlobal pMac, tpSirAddie pAddie) |
| 203 | { |
| 204 | int left = pAddie->length; |
| 205 | tANI_U8 *ptr = pAddie->addIEdata; |
| 206 | tANI_U8 elem_id, elem_len; |
| 207 | |
| 208 | if (left == 0) |
| 209 | return true; |
| 210 | |
| 211 | while(left >= 2) |
| 212 | { |
| 213 | elem_id = ptr[0]; |
| 214 | elem_len = ptr[1]; |
| 215 | left -= 2; |
| 216 | if(elem_len > left) |
| 217 | { |
| 218 | limLog( pMac, LOGE, |
| 219 | FL("****Invalid Add IEs eid = %d elem_len=%d left=%d*****\n"), |
| 220 | elem_id,elem_len,left); |
| 221 | return false; |
| 222 | } |
| 223 | |
| 224 | left -= elem_len; |
| 225 | ptr += (elem_len + 2); |
| 226 | } |
| 227 | // there shouldn't be any left byte |
| 228 | |
| 229 | |
| 230 | return true; |
| 231 | } /*** end limIsAddieValidInSmeReqMessage() ***/ |
| 232 | |
| 233 | #ifdef WLAN_SOFTAP_FEATURE |
| 234 | /** |
| 235 | * limSetRSNieWPAiefromSmeStartBSSReqMessage() |
| 236 | * |
| 237 | *FUNCTION: |
| 238 | * This function is called to verify if the RSN IE |
| 239 | * received in various SME_REQ messages is valid or not |
| 240 | * |
| 241 | *LOGIC: |
| 242 | * RSN IE validity checks are performed in this function |
| 243 | * |
| 244 | *ASSUMPTIONS: |
| 245 | * |
| 246 | *NOTE: |
| 247 | * |
| 248 | * @param pMac Pointer to Global MAC structure |
| 249 | * @param pRSNie Pointer to received RSN IE |
| 250 | * @return true when RSN IE is valid, false otherwise |
| 251 | */ |
| 252 | |
| 253 | tANI_U8 |
| 254 | limSetRSNieWPAiefromSmeStartBSSReqMessage(tpAniSirGlobal pMac, |
| 255 | tpSirRSNie pRSNie, |
| 256 | tpPESession pSessionEntry) |
| 257 | { |
| 258 | tANI_U8 wpaIndex = 0; |
| 259 | tANI_U32 privacy, val; |
| 260 | |
| 261 | if (wlan_cfgGetInt(pMac, WNI_CFG_PRIVACY_ENABLED, |
| 262 | &privacy) != eSIR_SUCCESS) |
| 263 | { |
| 264 | limLog(pMac, LOGP, |
| 265 | FL("Unable to retrieve POI from CFG\n")); |
| 266 | } |
| 267 | |
| 268 | if (wlan_cfgGetInt(pMac, WNI_CFG_RSN_ENABLED, |
| 269 | &val) != eSIR_SUCCESS) |
| 270 | { |
| 271 | limLog(pMac, LOGP, |
| 272 | FL("Unable to retrieve RSN_ENABLED from CFG\n")); |
| 273 | } |
| 274 | |
| 275 | if (pRSNie->length && (!privacy || !val)) |
| 276 | { |
| 277 | // Privacy & RSN not enabled in CFG. |
| 278 | /** |
| 279 | * In order to allow mixed mode for Guest access |
| 280 | * allow BSS creation/join with no Privacy capability |
| 281 | * yet advertising WPA IE |
| 282 | */ |
| 283 | PELOG1(limLog(pMac, LOG1, FL("RSN ie len %d but PRIVACY %d RSN %d\n"), |
| 284 | pRSNie->length, privacy, val);) |
| 285 | } |
| 286 | |
| 287 | if (pRSNie->length) |
| 288 | { |
| 289 | if ((pRSNie->rsnIEdata[0] != SIR_MAC_RSN_EID) && |
| 290 | (pRSNie->rsnIEdata[0] != SIR_MAC_WPA_EID)) |
| 291 | { |
| 292 | limLog(pMac, LOGE, FL("RSN/WPA EID %d not [%d || %d]\n"), |
| 293 | pRSNie->rsnIEdata[0], SIR_MAC_RSN_EID, |
| 294 | SIR_MAC_WPA_EID); |
| 295 | return false; |
| 296 | } |
| 297 | |
| 298 | // Check validity of RSN IE |
| 299 | if ((pRSNie->rsnIEdata[0] == SIR_MAC_RSN_EID) && |
| 300 | #if 0 // Comparison always false |
| 301 | (pRSNie->rsnIEdata[1] > SIR_MAC_RSN_IE_MAX_LENGTH) || |
| 302 | #endif |
| 303 | (pRSNie->rsnIEdata[1] < SIR_MAC_RSN_IE_MIN_LENGTH)) |
| 304 | { |
| 305 | limLog(pMac, LOGE, FL("RSN IE len %d not [%d,%d]\n"), |
| 306 | pRSNie->rsnIEdata[1], SIR_MAC_RSN_IE_MIN_LENGTH, |
| 307 | SIR_MAC_RSN_IE_MAX_LENGTH); |
| 308 | return false; |
| 309 | } |
| 310 | |
| 311 | if (pRSNie->length > pRSNie->rsnIEdata[1] + 2) |
| 312 | { |
| 313 | if (pRSNie->rsnIEdata[0] != SIR_MAC_RSN_EID) |
| 314 | { |
| 315 | limLog(pMac, |
| 316 | LOGE, |
| 317 | FL("First byte[%d] in rsnIEdata is not RSN_EID\n"), |
| 318 | pRSNie->rsnIEdata[1]); |
| 319 | return false; |
| 320 | } |
| 321 | |
| 322 | limLog(pMac, |
| 323 | LOG1, |
| 324 | FL("WPA IE is present along with WPA2 IE\n")); |
| 325 | wpaIndex = 2 + pRSNie->rsnIEdata[1]; |
| 326 | } |
| 327 | else if ((pRSNie->length == pRSNie->rsnIEdata[1] + 2) && |
| 328 | (pRSNie->rsnIEdata[0] == SIR_MAC_RSN_EID)) |
| 329 | { |
| 330 | limLog(pMac, |
| 331 | LOG1, |
| 332 | FL("Only RSN IE is present\n")); |
| 333 | dot11fUnpackIeRSN(pMac,&pRSNie->rsnIEdata[2], |
| 334 | (tANI_U8)pRSNie->length,&pSessionEntry->gStartBssRSNIe); |
| 335 | } |
| 336 | else if ((pRSNie->length == pRSNie->rsnIEdata[1] + 2) && |
| 337 | (pRSNie->rsnIEdata[0] == SIR_MAC_WPA_EID)) |
| 338 | { |
| 339 | limLog(pMac, |
| 340 | LOG1, |
| 341 | FL("Only WPA IE is present\n")); |
| 342 | |
| 343 | dot11fUnpackIeWPA(pMac,&pRSNie->rsnIEdata[6],(tANI_U8)pRSNie->length-4, |
| 344 | &pSessionEntry->gStartBssWPAIe); |
| 345 | } |
| 346 | |
| 347 | // Check validity of WPA IE |
| 348 | val = sirReadU32((tANI_U8 *) &pRSNie->rsnIEdata[wpaIndex + 2]); |
| 349 | |
| 350 | if ((pRSNie->rsnIEdata[wpaIndex] == SIR_MAC_WPA_EID) && |
| 351 | #if 0 // Comparison always false |
| 352 | (pRSNie->rsnIEdata[wpaIndex + 1] > SIR_MAC_WPA_IE_MAX_LENGTH) || |
| 353 | #endif |
| 354 | ((pRSNie->rsnIEdata[wpaIndex + 1] < SIR_MAC_WPA_IE_MIN_LENGTH) || |
| 355 | (SIR_MAC_WPA_OUI != val))) |
| 356 | { |
| 357 | limLog(pMac, LOGE, |
| 358 | FL("WPA IE len %d not [%d,%d] OR data 0x%x not 0x%x\n"), |
| 359 | pRSNie->rsnIEdata[1], SIR_MAC_RSN_IE_MIN_LENGTH, |
| 360 | SIR_MAC_RSN_IE_MAX_LENGTH, val, SIR_MAC_WPA_OUI); |
| 361 | |
| 362 | return false; |
| 363 | } |
| 364 | else |
| 365 | { |
| 366 | /* Both RSN and WPA IEs are present */ |
| 367 | dot11fUnpackIeRSN(pMac,&pRSNie->rsnIEdata[2], |
| 368 | (tANI_U8)pRSNie->length,&pSessionEntry->gStartBssRSNIe); |
| 369 | |
| 370 | dot11fUnpackIeWPA(pMac,&pRSNie->rsnIEdata[wpaIndex + 6], |
| 371 | pRSNie->rsnIEdata[wpaIndex + 1]-4, |
| 372 | &pSessionEntry->gStartBssWPAIe); |
| 373 | |
| 374 | } |
| 375 | } |
| 376 | |
| 377 | return true; |
| 378 | } /*** end limSetRSNieWPAiefromSmeStartBSSReqMessage() ***/ |
| 379 | #endif |
| 380 | |
| 381 | #if (WNI_POLARIS_FW_PACKAGE == ADVANCED) && (WNI_POLARIS_FW_PRODUCT == AP) |
| 382 | /** |
| 383 | * limIsBssInfoValidInSmeReqMessage() |
| 384 | * |
| 385 | *FUNCTION: |
| 386 | * This function is called to verify if the BSS info |
| 387 | * received in various SME_REQ messages is valid or not |
| 388 | * |
| 389 | *LOGIC: |
| 390 | * BSS info validity checks are performed in this function |
| 391 | * |
| 392 | *ASSUMPTIONS: |
| 393 | * |
| 394 | *NOTE: |
| 395 | * |
| 396 | * @param pMac Pointer to Global MAC structure |
| 397 | * @param pBssInfo Pointer to received Bss Information |
| 398 | * @return true when BSS info is valid, false otherwise |
| 399 | */ |
| 400 | |
| 401 | static tANI_U8 |
| 402 | limIsBssInfoValidInSmeReqMessage(tpAniSirGlobal pMac, |
| 403 | tpSirNeighborBssInfo pBssInfo) |
| 404 | { |
| 405 | tANI_U8 valid = true; |
| 406 | |
| 407 | if ((pBssInfo->bssType != eSIR_INFRASTRUCTURE_MODE) || |
| 408 | limIsGroupAddr(pBssInfo->bssId) || |
| 409 | !pBssInfo->channelId || |
| 410 | !pBssInfo->ssId.length || |
| 411 | (pBssInfo->ssId.length > SIR_MAC_MAX_SSID_LENGTH) || |
| 412 | !limIsRSNieValidInSmeReqMessage(pMac, &pBssInfo->rsnIE)) |
| 413 | { |
| 414 | valid = false; |
| 415 | goto end; |
| 416 | } |
| 417 | |
| 418 | end: |
| 419 | return valid; |
| 420 | } /*** end limIsBssInfoValidInSmeReqMessage() ***/ |
| 421 | #else |
| 422 | |
| 423 | |
| 424 | |
| 425 | /** |
| 426 | * limIsBssDescrValidInSmeReqMessage() |
| 427 | * |
| 428 | *FUNCTION: |
| 429 | * This function is called to verify if the BSS Descr |
| 430 | * received in various SME_REQ messages is valid or not |
| 431 | * |
| 432 | *LOGIC: |
| 433 | * BSS Descritipion validity checks are performed in this function |
| 434 | * |
| 435 | *ASSUMPTIONS: |
| 436 | * |
| 437 | *NOTE: |
| 438 | * |
| 439 | * @param pMac Pointer to Global MAC structure |
| 440 | * @param pBssDescr Pointer to received Bss Descritipion |
| 441 | * @return true when BSS description is valid, false otherwise |
| 442 | */ |
| 443 | |
| 444 | static tANI_U8 |
| 445 | limIsBssDescrValidInSmeReqMessage(tpAniSirGlobal pMac, |
| 446 | tpSirBssDescription pBssDescr) |
| 447 | { |
| 448 | tANI_U8 valid = true; |
| 449 | |
| 450 | if (limIsAddrBC(pBssDescr->bssId) || |
| 451 | !pBssDescr->channelId) |
| 452 | { |
| 453 | valid = false; |
| 454 | goto end; |
| 455 | } |
| 456 | |
| 457 | end: |
| 458 | return valid; |
| 459 | } /*** end limIsBssDescrValidInSmeReqMessage() ***/ |
| 460 | #endif |
| 461 | |
| 462 | |
| 463 | |
| 464 | /** |
| 465 | * limIsSmeStartReqValid() |
| 466 | * |
| 467 | *FUNCTION: |
| 468 | * This function is called by limProcessSmeReqMessages() upon |
| 469 | * receiving SME_START_REQ message from application. |
| 470 | * |
| 471 | *LOGIC: |
| 472 | * Message validity checks are performed in this function |
| 473 | * |
| 474 | *ASSUMPTIONS: |
| 475 | * |
| 476 | *NOTE: |
| 477 | * |
| 478 | * @param pMsg - Pointer to received SME_START_BSS_REQ message |
| 479 | * @return true when received SME_START_REQ is formatted correctly |
| 480 | * false otherwise |
| 481 | */ |
| 482 | |
| 483 | tANI_U8 |
| 484 | limIsSmeStartReqValid(tpAniSirGlobal pMac, tANI_U32 *pMsg) |
| 485 | { |
| 486 | tANI_U8 valid = true; |
| 487 | |
| 488 | if (((tpSirSmeStartReq) pMsg)->length != sizeof(tSirSmeStartReq)) |
| 489 | { |
| 490 | /** |
| 491 | * Invalid length in START_REQ message |
| 492 | * Log error. |
| 493 | */ |
| 494 | limLog(pMac, LOGW, |
| 495 | FL("Invalid length %d in eWNI_SME_START_REQ\n"), |
| 496 | ((tpSirSmeStartReq) pMsg)->length); |
| 497 | |
| 498 | valid = false; |
| 499 | goto end; |
| 500 | } |
| 501 | |
| 502 | end: |
| 503 | return valid; |
| 504 | } /*** end limIsSmeStartReqValid() ***/ |
| 505 | |
| 506 | |
| 507 | |
| 508 | /** |
| 509 | * limIsSmeStartBssReqValid() |
| 510 | * |
| 511 | *FUNCTION: |
| 512 | * This function is called by limProcessSmeReqMessages() upon |
| 513 | * receiving SME_START_BSS_REQ message from application. |
| 514 | * |
| 515 | *LOGIC: |
| 516 | * Message validity checks are performed in this function |
| 517 | * |
| 518 | *ASSUMPTIONS: |
| 519 | * |
| 520 | *NOTE: |
| 521 | * |
| 522 | * @param pMac Pointer to Global MAC structure |
| 523 | * @param pStartBssReq Pointer to received SME_START_BSS_REQ message |
| 524 | * @return true when received SME_START_BSS_REQ is formatted correctly |
| 525 | * false otherwise |
| 526 | */ |
| 527 | |
| 528 | tANI_U8 |
| 529 | limIsSmeStartBssReqValid(tpAniSirGlobal pMac, |
| 530 | tpSirSmeStartBssReq pStartBssReq) |
| 531 | { |
| 532 | tANI_U8 i = 0; |
| 533 | tANI_U8 valid = true; |
| 534 | |
| 535 | PELOG1(limLog(pMac, LOG1, |
| 536 | FL("Parsed START_BSS_REQ fields are bssType=%d, channelId=%d, SSID len=%d, rsnIE len=%d, nwType=%d, rateset len=%d\n"), |
| 537 | pStartBssReq->bssType, |
| 538 | pStartBssReq->channelId, |
| 539 | pStartBssReq->ssId.length, |
| 540 | pStartBssReq->rsnIE.length, |
| 541 | pStartBssReq->nwType, |
| 542 | pStartBssReq->operationalRateSet.numRates);) |
| 543 | |
| 544 | switch (pStartBssReq->bssType) |
| 545 | { |
| 546 | case eSIR_INFRASTRUCTURE_MODE: |
| 547 | #if (WNI_POLARIS_FW_PRODUCT == AP) |
| 548 | /* Check for the AP Role/Station role here and act accordingly. |
| 549 | * Currently assuming this as AP and breaks TODO */ |
| 550 | break; |
| 551 | #endif |
| 552 | /** |
| 553 | * Should not have received start BSS req with bssType |
| 554 | * Infrastructure on STA. |
| 555 | * Log error. |
| 556 | */ |
| 557 | limLog(pMac, LOGE, FL("Invalid bssType %d in eWNI_SME_START_BSS_REQ\n"),pStartBssReq->bssType); |
| 558 | valid = false; |
| 559 | goto end; |
| 560 | break; |
| 561 | |
| 562 | case eSIR_IBSS_MODE: |
| 563 | break; |
| 564 | |
| 565 | /* Added for BT AMP support */ |
| 566 | case eSIR_BTAMP_STA_MODE: |
| 567 | break; |
| 568 | |
| 569 | /* Added for BT AMP support */ |
| 570 | case eSIR_BTAMP_AP_MODE: |
| 571 | break; |
| 572 | |
| 573 | #ifdef WLAN_SOFTAP_FEATURE |
| 574 | /* Added for SoftAP support */ |
| 575 | case eSIR_INFRA_AP_MODE: |
| 576 | break; |
| 577 | #endif |
| 578 | |
| 579 | default: |
| 580 | /** |
| 581 | * Should not have received start BSS req with bssType |
| 582 | * other than Infrastructure/IBSS. |
| 583 | * Log error |
| 584 | */ |
| 585 | limLog(pMac, LOGW, |
| 586 | FL("Invalid bssType %d in eWNI_SME_START_BSS_REQ\n"), |
| 587 | pStartBssReq->bssType); |
| 588 | |
| 589 | valid = false; |
| 590 | goto end; |
| 591 | } |
| 592 | |
| 593 | #if (WNI_POLARIS_FW_PACKAGE == ADVANCED) && (WNI_POLARIS_FW_PRODUCT == AP) |
| 594 | |
| 595 | /* Assumed as AP again, need to check the role and change accordingly */ |
| 596 | if (pStartBssReq->bssType == eSIR_INFRASTRUCTURE_MODE) |
| 597 | { |
| 598 | if ((pStartBssReq->numSSID == 1) && pStartBssReq->ssId.length && |
| 599 | ((pStartBssReq->ssId.length != pStartBssReq->ssIdList[0].length) || |
| 600 | ( !palEqualMemory( pMac->hHdd,pStartBssReq->ssId.ssId, |
| 601 | pStartBssReq->ssIdList[0].ssId, |
| 602 | pStartBssReq->ssId.length) ))) |
| 603 | { |
| 604 | /** |
| 605 | * Invalid combination of ssID length |
| 606 | * and number of SSIDs present. |
| 607 | * Reject START_BSS_REQ. |
| 608 | */ |
| 609 | limLog(pMac, LOGW, |
| 610 | FL("Mismatch in SSID length & numSSID in SME_START_BSS_REQ\n")); |
| 611 | |
| 612 | valid = false; |
| 613 | goto end; |
| 614 | } |
| 615 | |
| 616 | if (!pStartBssReq->numSSID || |
| 617 | (pStartBssReq->ssId.length && (pStartBssReq->numSSID != 1))) |
| 618 | { |
| 619 | /** |
| 620 | * Invalid combination of ssID length |
| 621 | * and number of SSIDs present. |
| 622 | * Reject START_BSS_REQ. |
| 623 | */ |
| 624 | limLog(pMac, LOGW, |
| 625 | FL("Mismatch in SSID length[%d] & numSSID[%d] in SME_START_BSS_REQ\n"), |
| 626 | pStartBssReq->ssId.length, pStartBssReq->numSSID); |
| 627 | |
| 628 | valid = false; |
| 629 | goto end; |
| 630 | } |
| 631 | } |
| 632 | #endif |
| 633 | #if defined(ANI_PRODUCT_TYPE_CLIENT) || defined(ANI_AP_CLIENT_SDK) |
| 634 | /* This below code is client specific code. TODO */ |
| 635 | if (pStartBssReq->bssType == eSIR_IBSS_MODE) |
| 636 | { |
| 637 | if (!pStartBssReq->ssId.length || |
| 638 | (pStartBssReq->ssId.length > SIR_MAC_MAX_SSID_LENGTH)) |
| 639 | { |
| 640 | // Invalid length for SSID. |
| 641 | // Reject START_BSS_REQ |
| 642 | limLog(pMac, LOGW, |
| 643 | FL("Invalid SSID length in eWNI_SME_START_BSS_REQ\n")); |
| 644 | |
| 645 | valid = false; |
| 646 | goto end; |
| 647 | } |
| 648 | } |
| 649 | #endif |
| 650 | |
| 651 | #if (WNI_POLARIS_FW_PACKAGE == ADVANCED) && (WNI_POLARIS_FW_PRODUCT == AP) |
| 652 | /* Assumed as AP TODO */ |
| 653 | if (pStartBssReq->bssType == eSIR_INFRASTRUCTURE_MODE) |
| 654 | { |
| 655 | tpSirAlternateRadioInfo pRadioInfo; |
| 656 | |
| 657 | pRadioInfo = pStartBssReq->alternateRadioList.alternateRadio; |
| 658 | for (i = 0; i < pStartBssReq->alternateRadioList.numBss; i++) |
| 659 | { |
| 660 | if (limIsGroupAddr(pRadioInfo->bssId)) |
| 661 | { |
| 662 | // Invalid mate BSSID. |
| 663 | // Reject START_BSS_REQ |
| 664 | limLog(pMac, LOGW, |
| 665 | FL("Invalid mate BSSID in eWNI_SME_START_BSS_REQ\n")); |
| 666 | |
| 667 | valid = false; |
| 668 | goto end; |
| 669 | } |
| 670 | pRadioInfo += sizeof(tSirAlternateRadioInfo); |
| 671 | } |
| 672 | |
| 673 | /* |
| 674 | ** check WDS info length |
| 675 | **/ |
| 676 | if (pStartBssReq->wdsInfo.wdsLength > ANI_WDS_INFO_MAX_LENGTH) |
| 677 | { |
| 678 | PELOGW(limLog(pMac, LOGW, FL("Illegal WDS info length\n"));) |
| 679 | valid = false; |
| 680 | goto end; |
| 681 | } |
| 682 | } |
| 683 | #endif |
| 684 | |
| 685 | if (!limIsRSNieValidInSmeReqMessage(pMac, &pStartBssReq->rsnIE)) |
| 686 | { |
| 687 | valid = false; |
| 688 | goto end; |
| 689 | } |
| 690 | |
| 691 | if (pStartBssReq->nwType != eSIR_11A_NW_TYPE && |
| 692 | pStartBssReq->nwType != eSIR_11B_NW_TYPE && |
| 693 | pStartBssReq->nwType != eSIR_11G_NW_TYPE) |
| 694 | { |
| 695 | valid = false; |
| 696 | goto end; |
| 697 | } |
| 698 | |
| 699 | if (pStartBssReq->nwType == eSIR_11A_NW_TYPE) |
| 700 | { |
| 701 | for (i = 0; i < pStartBssReq->operationalRateSet.numRates; i++) |
| 702 | if (!sirIsArate(pStartBssReq->operationalRateSet.rate[i] & 0x7F)) |
| 703 | { |
| 704 | // Invalid Operational rates |
| 705 | // Reject START_BSS_REQ |
| 706 | limLog(pMac, LOGW, |
| 707 | FL("Invalid operational rates in eWNI_SME_START_BSS_REQ\n")); |
| 708 | sirDumpBuf(pMac, SIR_LIM_MODULE_ID, LOGW, |
| 709 | pStartBssReq->operationalRateSet.rate, |
| 710 | pStartBssReq->operationalRateSet.numRates); |
| 711 | |
| 712 | valid = false; |
| 713 | goto end; |
| 714 | } |
| 715 | } |
| 716 | // check if all the rates in the operatioal rate set are legal 11G rates |
| 717 | else if (pStartBssReq->nwType == eSIR_11G_NW_TYPE) |
| 718 | { |
| 719 | for (i = 0; i < pStartBssReq->operationalRateSet.numRates; i++) |
| 720 | if (!sirIsGrate(pStartBssReq->operationalRateSet.rate[i] & 0x7F)) |
| 721 | { |
| 722 | // Invalid Operational rates |
| 723 | // Reject START_BSS_REQ |
| 724 | limLog(pMac, LOGW, |
| 725 | FL("Invalid operational rates in eWNI_SME_START_BSS_REQ\n")); |
| 726 | sirDumpBuf(pMac, SIR_LIM_MODULE_ID, LOGW, |
| 727 | pStartBssReq->operationalRateSet.rate, |
| 728 | pStartBssReq->operationalRateSet.numRates); |
| 729 | |
| 730 | valid = false; |
| 731 | goto end; |
| 732 | } |
| 733 | } |
| 734 | else |
| 735 | { |
| 736 | for (i = 0; i < pStartBssReq->operationalRateSet.numRates; i++) |
| 737 | if (!sirIsBrate(pStartBssReq->operationalRateSet.rate[i] & 0x7F)) |
| 738 | { |
| 739 | // Invalid Operational rates |
| 740 | // Reject START_BSS_REQ |
| 741 | limLog(pMac, LOGW, |
| 742 | FL("Invalid operational rates in eWNI_SME_START_BSS_REQ\n")); |
| 743 | sirDumpBuf(pMac, SIR_LIM_MODULE_ID, LOGW, |
| 744 | pStartBssReq->operationalRateSet.rate, |
| 745 | pStartBssReq->operationalRateSet.numRates); |
| 746 | |
| 747 | valid = false; |
| 748 | goto end; |
| 749 | } |
| 750 | } |
| 751 | |
| 752 | end: |
| 753 | return valid; |
| 754 | } /*** end limIsSmeStartBssReqValid() ***/ |
| 755 | |
| 756 | |
| 757 | |
| 758 | /** |
| 759 | * limIsSmeJoinReqValid() |
| 760 | * |
| 761 | *FUNCTION: |
| 762 | * This function is called by limProcessSmeReqMessages() upon |
| 763 | * receiving SME_JOIN_REQ message from application. |
| 764 | * |
| 765 | *LOGIC: |
| 766 | * Message validity checks are performed in this function |
| 767 | * |
| 768 | *ASSUMPTIONS: |
| 769 | * |
| 770 | *NOTE: |
| 771 | * |
| 772 | * @param pMac Pointer to Global MAC structure |
| 773 | * @param pJoinReq Pointer to received SME_JOIN_REQ message |
| 774 | * @return true when received SME_JOIN_REQ is formatted correctly |
| 775 | * false otherwise |
| 776 | */ |
| 777 | |
| 778 | tANI_U8 |
| 779 | limIsSmeJoinReqValid(tpAniSirGlobal pMac, tpSirSmeJoinReq pJoinReq) |
| 780 | { |
| 781 | tANI_U8 valid = true; |
| 782 | |
| 783 | #if (WNI_POLARIS_FW_PACKAGE == ADVANCED) |
| 784 | if (pJoinReq->assocType > eSIR_TRANSFERRED) |
| 785 | { |
| 786 | /// Received eWNI_SME_JOIN_REQ with invalid assocType |
| 787 | // Log the event |
| 788 | limLog(pMac, LOGW, |
| 789 | FL("received SME_JOIN_REQ with invalid assocType\n")); |
| 790 | |
| 791 | valid = false; |
| 792 | goto end; |
| 793 | } |
| 794 | #endif |
| 795 | |
| 796 | if (!limIsRSNieValidInSmeReqMessage(pMac, &pJoinReq->rsnIE)) |
| 797 | { |
| 798 | limLog(pMac, LOGE, |
| 799 | FL("received SME_JOIN_REQ with invalid RSNIE\n")); |
| 800 | valid = false; |
| 801 | goto end; |
| 802 | } |
| 803 | |
| 804 | if (!limIsAddieValidInSmeReqMessage(pMac, &pJoinReq->addIEScan)) |
| 805 | { |
| 806 | limLog(pMac, LOGE, |
| 807 | FL("received SME_JOIN_REQ with invalid additional IE for scan\n")); |
| 808 | valid = false; |
| 809 | goto end; |
| 810 | } |
| 811 | |
| 812 | if (!limIsAddieValidInSmeReqMessage(pMac, &pJoinReq->addIEAssoc)) |
| 813 | { |
| 814 | limLog(pMac, LOGE, |
| 815 | FL("received SME_JOIN_REQ with invalid additional IE for assoc\n")); |
| 816 | valid = false; |
| 817 | goto end; |
| 818 | } |
| 819 | |
| 820 | |
| 821 | #if (WNI_POLARIS_FW_PACKAGE == ADVANCED) && (WNI_POLARIS_FW_PRODUCT == AP) |
| 822 | if (!limIsBssInfoValidInSmeReqMessage( |
| 823 | pMac, |
| 824 | pJoinReq->neighborBssList.bssList)) |
| 825 | #else |
| 826 | if (!limIsBssDescrValidInSmeReqMessage(pMac, |
| 827 | &pJoinReq->bssDescription)) |
| 828 | #endif |
| 829 | { |
| 830 | /// Received eWNI_SME_JOIN_REQ with invalid BSS Info |
| 831 | // Log the event |
| 832 | limLog(pMac, LOGE, |
| 833 | FL("received SME_JOIN_REQ with invalid bssInfo\n")); |
| 834 | |
| 835 | valid = false; |
| 836 | goto end; |
| 837 | } |
| 838 | |
Jeff Johnson | e724574 | 2012-09-05 17:12:55 -0700 | [diff] [blame] | 839 | /* |
| 840 | Reject Join Req if the Self Mac Address and |
| 841 | the Ap's Mac Address is same |
| 842 | */ |
| 843 | if( palEqualMemory( pMac->hHdd, (tANI_U8* ) pJoinReq->selfMacAddr, |
| 844 | (tANI_U8 *) pJoinReq->bssDescription.bssId, |
| 845 | (tANI_U8) (sizeof(tSirMacAddr)))) |
| 846 | { |
| 847 | // Log the event |
| 848 | limLog(pMac, LOGE, |
| 849 | FL("received SME_JOIN_REQ with Self Mac and BSSID Same\n")); |
| 850 | |
| 851 | valid = false; |
| 852 | goto end; |
| 853 | } |
| 854 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 855 | end: |
| 856 | return valid; |
| 857 | } /*** end limIsSmeJoinReqValid() ***/ |
| 858 | |
| 859 | |
| 860 | |
| 861 | /** |
| 862 | * limIsSmeDisassocReqValid() |
| 863 | * |
| 864 | *FUNCTION: |
| 865 | * This function is called by limProcessSmeReqMessages() upon |
| 866 | * receiving SME_DISASSOC_REQ message from application. |
| 867 | * |
| 868 | *LOGIC: |
| 869 | * Message validity checks are performed in this function |
| 870 | * |
| 871 | *ASSUMPTIONS: |
| 872 | * |
| 873 | *NOTE: |
| 874 | * |
| 875 | * @param pMac Pointer to Global MAC structure |
| 876 | * @param pDisassocReq Pointer to received SME_DISASSOC_REQ message |
| 877 | * @return true When received SME_DISASSOC_REQ is formatted |
| 878 | * correctly |
| 879 | * false otherwise |
| 880 | */ |
| 881 | |
| 882 | tANI_U8 |
| 883 | limIsSmeDisassocReqValid(tpAniSirGlobal pMac, |
| 884 | tpSirSmeDisassocReq pDisassocReq, tpPESession psessionEntry) |
| 885 | { |
| 886 | if (limIsGroupAddr(pDisassocReq->peerMacAddr) && |
| 887 | !limIsAddrBC(pDisassocReq->peerMacAddr)) |
| 888 | return false; |
| 889 | |
| 890 | #if (WNI_POLARIS_FW_PRODUCT == AP) |
| 891 | if (((psessionEntry->limSystemRole == eLIM_AP_ROLE) && |
| 892 | ((pDisassocReq->aid < 2) || (pDisassocReq->aid > 2007))) || |
| 893 | ((psessionEntry->limSystemRole == eLIM_STA_ROLE) && |
| 894 | (pDisassocReq->aid != 1))) |
| 895 | return false; |
| 896 | #endif |
| 897 | |
| 898 | return true; |
| 899 | } /*** end limIsSmeDisassocReqValid() ***/ |
| 900 | |
| 901 | |
| 902 | |
| 903 | /** |
| 904 | * limIsSmeDisassocCnfValid() |
| 905 | * |
| 906 | *FUNCTION: |
| 907 | * This function is called by limProcessSmeReqMessages() upon |
| 908 | * receiving SME_DISASSOC_CNF message from application. |
| 909 | * |
| 910 | *LOGIC: |
| 911 | * Message validity checks are performed in this function |
| 912 | * |
| 913 | *ASSUMPTIONS: |
| 914 | * |
| 915 | *NOTE: |
| 916 | * |
| 917 | * @param pMac Pointer to Global MAC structure |
| 918 | * @param pDisassocCnf Pointer to received SME_DISASSOC_REQ message |
| 919 | * @return true When received SME_DISASSOC_CNF is formatted |
| 920 | * correctly |
| 921 | * false otherwise |
| 922 | */ |
| 923 | |
| 924 | tANI_U8 |
| 925 | limIsSmeDisassocCnfValid(tpAniSirGlobal pMac, |
| 926 | tpSirSmeDisassocCnf pDisassocCnf, tpPESession psessionEntry) |
| 927 | { |
| 928 | if (limIsGroupAddr(pDisassocCnf->peerMacAddr)) |
| 929 | return false; |
| 930 | |
| 931 | #if (WNI_POLARIS_FW_PRODUCT == AP) |
| 932 | if (((psessionEntry->limSystemRole == eLIM_AP_ROLE) && |
| 933 | ((pDisassocCnf->aid < 2) || (pDisassocCnf->aid > 2007))) || |
| 934 | ((psessionEntry->limSystemRole == eLIM_STA_ROLE) && |
| 935 | (pDisassocCnf->aid != 1))) |
| 936 | return false; |
| 937 | #endif |
| 938 | return true; |
| 939 | } /*** end limIsSmeDisassocCnfValid() ***/ |
| 940 | |
| 941 | |
| 942 | |
| 943 | /** |
| 944 | * limIsSmeDeauthReqValid() |
| 945 | * |
| 946 | *FUNCTION: |
| 947 | * This function is called by limProcessSmeReqMessages() upon |
| 948 | * receiving SME_DEAUTH_REQ message from application. |
| 949 | * |
| 950 | *LOGIC: |
| 951 | * Message validity checks are performed in this function |
| 952 | * |
| 953 | *ASSUMPTIONS: |
| 954 | * |
| 955 | *NOTE: |
| 956 | * |
| 957 | * @param pMac Pointer to Global MAC structure |
| 958 | * @param pDeauthReq Pointer to received SME_DEAUTH_REQ message |
| 959 | * @return true When received SME_DEAUTH_REQ is formatted correctly |
| 960 | * false otherwise |
| 961 | */ |
| 962 | |
| 963 | tANI_U8 |
| 964 | limIsSmeDeauthReqValid(tpAniSirGlobal pMac, tpSirSmeDeauthReq pDeauthReq, tpPESession psessionEntry) |
| 965 | { |
| 966 | if (limIsGroupAddr(pDeauthReq->peerMacAddr) && |
| 967 | !limIsAddrBC(pDeauthReq->peerMacAddr)) |
| 968 | return false; |
| 969 | |
| 970 | #if (WNI_POLARIS_FW_PRODUCT == AP) |
| 971 | if (((psessionEntryp->limSystemRole == eLIM_AP_ROLE) && |
| 972 | ((pDeauthReq->aid < 2) || (pDeauthReq->aid > 2007))) || |
| 973 | ((psessionEntryp->limSystemRole == eLIM_STA_ROLE) && |
| 974 | (pDeauthReq->aid != 1))) |
| 975 | return false; |
| 976 | #endif |
| 977 | return true; |
| 978 | } /*** end limIsSmeDeauthReqValid() ***/ |
| 979 | |
| 980 | |
| 981 | |
| 982 | /** |
| 983 | * limIsSmeScanReqValid() |
| 984 | * |
| 985 | *FUNCTION: |
| 986 | * This function is called by limProcessSmeReqMessages() upon |
| 987 | * receiving SME_SCAN_REQ message from application. |
| 988 | * |
| 989 | *LOGIC: |
| 990 | * Message validity checks are performed in this function |
| 991 | * |
| 992 | *ASSUMPTIONS: |
| 993 | * |
| 994 | *NOTE: |
| 995 | * |
| 996 | * @param pScanReq Pointer to received SME_SCAN_REQ message |
| 997 | * @return true when received SME_SCAN_REQ is formatted correctly |
| 998 | * false otherwise |
| 999 | */ |
| 1000 | |
| 1001 | tANI_U8 |
| 1002 | limIsSmeScanReqValid(tpAniSirGlobal pMac, tpSirSmeScanReq pScanReq) |
| 1003 | { |
| 1004 | tANI_U8 valid = true; |
| 1005 | tANI_U8 i = 0; |
| 1006 | |
| 1007 | for (i = 0; i < pScanReq->numSsid; i++) |
| 1008 | { |
| 1009 | if (pScanReq->ssId[i].length > SIR_MAC_MAX_SSID_LENGTH) |
| 1010 | { |
| 1011 | valid = false; |
| 1012 | goto end; |
| 1013 | } |
| 1014 | } |
| 1015 | if ((pScanReq->bssType > eSIR_AUTO_MODE) || |
| 1016 | (limIsGroupAddr(pScanReq->bssId) && !limIsAddrBC(pScanReq->bssId)) || |
| 1017 | (!(pScanReq->scanType == eSIR_PASSIVE_SCAN || pScanReq->scanType == eSIR_ACTIVE_SCAN)) || |
| 1018 | (pScanReq->channelList.numChannels > SIR_MAX_NUM_CHANNELS)) |
| 1019 | { |
| 1020 | valid = false; |
| 1021 | goto end; |
| 1022 | } |
| 1023 | |
| 1024 | /* |
| 1025 | ** check min/max channelTime range |
| 1026 | **/ |
| 1027 | |
| 1028 | if ((pScanReq->scanType == eSIR_ACTIVE_SCAN) && |
| 1029 | (pScanReq->maxChannelTime < pScanReq->minChannelTime)) |
| 1030 | { |
| 1031 | PELOGW(limLog(pMac, LOGW, FL("Max Channel Time < Min Channel Time\n"));) |
| 1032 | valid = false; |
| 1033 | goto end; |
| 1034 | } |
| 1035 | |
| 1036 | end: |
| 1037 | return valid; |
| 1038 | } /*** end limIsSmeScanReqValid() ***/ |
| 1039 | |
| 1040 | |
| 1041 | |
| 1042 | /** |
| 1043 | * limIsSmeAuthReqValid() |
| 1044 | * |
| 1045 | *FUNCTION: |
| 1046 | * This function is called by limProcessSmeReqMessages() upon |
| 1047 | * receiving SME_AUTH_REQ message from application. |
| 1048 | * |
| 1049 | *LOGIC: |
| 1050 | * Message validity checks are performed in this function |
| 1051 | * |
| 1052 | *ASSUMPTIONS: |
| 1053 | * |
| 1054 | *NOTE: |
| 1055 | * |
| 1056 | * @param pAuthReq Pointer to received SME_AUTH_REQ message |
| 1057 | * @return true when received SME_AUTH_REQ is formatted correctly |
| 1058 | * false otherwise |
| 1059 | */ |
| 1060 | |
| 1061 | tANI_U8 |
| 1062 | limIsSmeAuthReqValid(tpSirSmeAuthReq pAuthReq) |
| 1063 | { |
| 1064 | tANI_U8 valid = true; |
| 1065 | |
| 1066 | if (limIsGroupAddr(pAuthReq->peerMacAddr) || |
| 1067 | (pAuthReq->authType > eSIR_AUTO_SWITCH) || |
| 1068 | !pAuthReq->channelNumber) |
| 1069 | { |
| 1070 | valid = false; |
| 1071 | goto end; |
| 1072 | } |
| 1073 | |
| 1074 | end: |
| 1075 | return valid; |
| 1076 | } /*** end limIsSmeAuthReqValid() ***/ |
| 1077 | |
| 1078 | |
| 1079 | |
| 1080 | /** |
| 1081 | * limIsSmeSetContextReqValid() |
| 1082 | * |
| 1083 | *FUNCTION: |
| 1084 | * This function is called by limProcessSmeReqMessages() upon |
| 1085 | * receiving SME_SET_CONTEXT_REQ message from application. |
| 1086 | * |
| 1087 | *LOGIC: |
| 1088 | * Message validity checks are performed in this function |
| 1089 | * |
| 1090 | *ASSUMPTIONS: |
| 1091 | * |
| 1092 | *NOTE: |
| 1093 | * |
| 1094 | * @param pMsg - Pointer to received SME_SET_CONTEXT_REQ message |
| 1095 | * @return true when received SME_SET_CONTEXT_REQ is formatted correctly |
| 1096 | * false otherwise |
| 1097 | */ |
| 1098 | |
| 1099 | tANI_U8 |
| 1100 | limIsSmeSetContextReqValid(tpAniSirGlobal pMac, tpSirSmeSetContextReq pSetContextReq) |
| 1101 | { |
| 1102 | tANI_U8 i = 0; |
| 1103 | tANI_U8 valid = true; |
| 1104 | tpSirKeys pKey = pSetContextReq->keyMaterial.key; |
| 1105 | |
| 1106 | if ((pSetContextReq->keyMaterial.edType != eSIR_ED_WEP40) && |
| 1107 | (pSetContextReq->keyMaterial.edType != eSIR_ED_WEP104) && |
| 1108 | (pSetContextReq->keyMaterial.edType != eSIR_ED_NONE) && |
| 1109 | #ifdef FEATURE_WLAN_WAPI |
| 1110 | (pSetContextReq->keyMaterial.edType != eSIR_ED_WPI) && |
| 1111 | #endif |
| 1112 | !pSetContextReq->keyMaterial.numKeys) |
| 1113 | { |
| 1114 | /** |
| 1115 | * No keys present in case of TKIP or CCMP |
| 1116 | * Log error. |
| 1117 | */ |
| 1118 | limLog(pMac, LOGW, |
| 1119 | FL("No keys present in SME_SETCONTEXT_REQ for edType=%d\n"), |
| 1120 | pSetContextReq->keyMaterial.edType); |
| 1121 | |
| 1122 | valid = false; |
| 1123 | goto end; |
| 1124 | } |
| 1125 | |
| 1126 | if (pSetContextReq->keyMaterial.numKeys && |
| 1127 | (pSetContextReq->keyMaterial.edType == eSIR_ED_NONE)) |
| 1128 | { |
| 1129 | /** |
| 1130 | * Keys present in case of no ED policy |
| 1131 | * Log error. |
| 1132 | */ |
| 1133 | limLog(pMac, LOGW, |
| 1134 | FL("Keys present in SME_SETCONTEXT_REQ for edType=%d\n"), |
| 1135 | pSetContextReq->keyMaterial.edType); |
| 1136 | |
| 1137 | valid = false; |
| 1138 | goto end; |
| 1139 | } |
| 1140 | |
| 1141 | if (pSetContextReq->keyMaterial.edType >= eSIR_ED_NOT_IMPLEMENTED) |
| 1142 | { |
| 1143 | /** |
| 1144 | * Invalid edType in the message |
| 1145 | * Log error. |
| 1146 | */ |
| 1147 | limLog(pMac, LOGW, |
| 1148 | FL("Invalid edType=%d in SME_SETCONTEXT_REQ\n"), |
| 1149 | pSetContextReq->keyMaterial.edType); |
| 1150 | |
| 1151 | valid = false; |
| 1152 | goto end; |
| 1153 | } |
| 1154 | else if (pSetContextReq->keyMaterial.edType > eSIR_ED_NONE) |
| 1155 | { |
| 1156 | tANI_U32 poi; |
| 1157 | |
| 1158 | if (wlan_cfgGetInt(pMac, WNI_CFG_PRIVACY_ENABLED, |
| 1159 | &poi) != eSIR_SUCCESS) |
| 1160 | { |
| 1161 | limLog(pMac, LOGP, |
| 1162 | FL("Unable to retrieve POI from CFG\n")); |
| 1163 | } |
| 1164 | |
| 1165 | if (!poi) |
| 1166 | { |
| 1167 | /** |
| 1168 | * Privacy is not enabled |
| 1169 | * In order to allow mixed mode for Guest access |
| 1170 | * allow BSS creation/join with no Privacy capability |
| 1171 | * yet advertising WPA IE |
| 1172 | */ |
| 1173 | PELOG1(limLog(pMac, LOG1, |
| 1174 | FL("Privacy is not enabled, yet non-None EDtype=%d in SME_SETCONTEXT_REQ\n"), |
| 1175 | pSetContextReq->keyMaterial.edType);) |
| 1176 | } |
| 1177 | } |
| 1178 | |
| 1179 | for (i = 0; i < pSetContextReq->keyMaterial.numKeys; i++) |
| 1180 | { |
| 1181 | if (((pSetContextReq->keyMaterial.edType == eSIR_ED_WEP40) && |
| 1182 | (pKey->keyLength != 5)) || |
| 1183 | ((pSetContextReq->keyMaterial.edType == eSIR_ED_WEP104) && |
| 1184 | (pKey->keyLength != 13)) || |
| 1185 | ((pSetContextReq->keyMaterial.edType == eSIR_ED_TKIP) && |
| 1186 | (pKey->keyLength != 32)) || |
| 1187 | #ifdef FEATURE_WLAN_WAPI |
| 1188 | ((pSetContextReq->keyMaterial.edType == eSIR_ED_WPI) && |
| 1189 | (pKey->keyLength != 32)) || |
| 1190 | #endif |
| 1191 | ((pSetContextReq->keyMaterial.edType == eSIR_ED_CCMP) && |
| 1192 | (pKey->keyLength != 16))) |
| 1193 | { |
| 1194 | /** |
| 1195 | * Invalid key length for a given ED type |
| 1196 | * Log error. |
| 1197 | */ |
| 1198 | limLog(pMac, LOGW, |
| 1199 | FL("Invalid keyLength =%d for edType=%d in SME_SETCONTEXT_REQ\n"), |
| 1200 | pKey->keyLength, pSetContextReq->keyMaterial.edType); |
| 1201 | |
| 1202 | valid = false; |
| 1203 | goto end; |
| 1204 | } |
| 1205 | pKey++; |
| 1206 | } |
| 1207 | |
| 1208 | end: |
| 1209 | return valid; |
| 1210 | } /*** end limIsSmeSetContextReqValid() ***/ |
| 1211 | |
| 1212 | |
| 1213 | |
| 1214 | /** |
| 1215 | * limIsSmeStopBssReqValid() |
| 1216 | * |
| 1217 | *FUNCTION: |
| 1218 | * This function is called by limProcessSmeReqMessages() upon |
| 1219 | * receiving SME_STOP_BSS_REQ message from application. |
| 1220 | * |
| 1221 | *LOGIC: |
| 1222 | * Message validity checks are performed in this function |
| 1223 | * |
| 1224 | *ASSUMPTIONS: |
| 1225 | * |
| 1226 | *NOTE: |
| 1227 | * |
| 1228 | * @param pMsg - Pointer to received SME_STOP_BSS_REQ message |
| 1229 | * @return true when received SME_STOP_BSS_REQ is formatted correctly |
| 1230 | * false otherwise |
| 1231 | */ |
| 1232 | |
| 1233 | tANI_U8 |
| 1234 | limIsSmeStopBssReqValid(tANI_U32 *pMsg) |
| 1235 | { |
| 1236 | tANI_U8 valid = true; |
| 1237 | |
| 1238 | return valid; |
| 1239 | } /*** end limIsSmeStopBssReqValid() ***/ |
| 1240 | |
| 1241 | |
| 1242 | /** |
| 1243 | * limGetBssIdFromSmeJoinReqMsg() |
| 1244 | * |
| 1245 | *FUNCTION: |
| 1246 | * This function is called in various places to get BSSID |
| 1247 | * from BSS description/Neighbor BSS Info in the SME_JOIN_REQ/ |
| 1248 | * SME_REASSOC_REQ message. |
| 1249 | * |
| 1250 | *PARAMS: |
| 1251 | * |
| 1252 | *LOGIC: |
| 1253 | * |
| 1254 | *ASSUMPTIONS: |
| 1255 | * NA |
| 1256 | * |
| 1257 | *NOTE: |
| 1258 | * NA |
| 1259 | * |
| 1260 | * @param pBuf - Pointer to received SME_JOIN/SME_REASSOC_REQ |
| 1261 | * message |
| 1262 | * @return pBssId - Pointer to BSSID |
| 1263 | */ |
| 1264 | |
| 1265 | tANI_U8* |
| 1266 | limGetBssIdFromSmeJoinReqMsg(tANI_U8 *pBuf) |
| 1267 | { |
| 1268 | if (!pBuf) |
| 1269 | return NULL; |
| 1270 | |
| 1271 | pBuf += sizeof(tANI_U32); // skip message header |
| 1272 | |
| 1273 | #if (WNI_POLARIS_FW_PACKAGE == ADVANCED) |
| 1274 | pBuf += sizeof(tSirAssocType); // skip assocType |
| 1275 | #endif |
| 1276 | |
| 1277 | pBuf += limGetU16(pBuf) + sizeof(tANI_U16); // skip RSN IE |
| 1278 | |
| 1279 | #if (WNI_POLARIS_FW_PACKAGE == ADVANCED) && (WNI_POLARIS_FW_PRODUCT == AP) |
| 1280 | pBuf += sizeof(tAniBool); // skip BP indicator |
| 1281 | pBuf += sizeof(tSirBpIndicatorType); // skip BP indicator type |
| 1282 | pBuf += sizeof(tANI_U32); // skip number of neighbor BSS |
| 1283 | #else |
| 1284 | pBuf += sizeof(tANI_U16); // skip length of BSS description |
| 1285 | #endif |
| 1286 | |
| 1287 | return (pBuf); |
| 1288 | } /*** end limGetBssIdFromSmeJoinReqMsg() ***/ |
| 1289 | |
| 1290 | |