Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1 | /* |
Krishna Kumaar Natarajan | d1cd56e | 2016-09-30 08:43:03 -0700 | [diff] [blame] | 2 | * Copyright (c) 2012-2017 The Linux Foundation. All rights reserved. |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [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 | * This file was originally distributed by Qualcomm Atheros, Inc. |
| 24 | * under proprietary terms before Copyright ownership was assigned |
| 25 | * to the Linux Foundation. |
| 26 | */ |
| 27 | |
| 28 | #include "cds_api.h" |
| 29 | #include "ani_global.h" |
| 30 | #include "sir_common.h" |
| 31 | #include "wni_cfg.h" |
| 32 | #include "lim_utils.h" |
| 33 | #include "lim_assoc_utils.h" |
| 34 | #include "lim_sta_hash_api.h" |
| 35 | #include "sch_api.h" /* sch_set_fixed_beacon_fields for IBSS coalesce */ |
| 36 | #include "lim_security_utils.h" |
| 37 | #include "lim_send_messages.h" |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 38 | #include "lim_ft_defs.h" |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 39 | #include "lim_session.h" |
| 40 | #include "lim_ibss_peer_mgmt.h" |
| 41 | #include "lim_types.h" |
| 42 | |
| 43 | /** |
| 44 | * ibss_peer_find |
| 45 | * |
| 46 | ***FUNCTION: |
| 47 | * This function is called while adding a context at |
| 48 | * DPH & Polaris for a peer in IBSS. |
| 49 | * If peer is found in the list, capabilities from the |
| 50 | * returned BSS description are used at DPH node & Polaris. |
| 51 | * |
| 52 | ***LOGIC: |
| 53 | * |
| 54 | ***ASSUMPTIONS: |
| 55 | * |
| 56 | ***NOTE: |
| 57 | * |
| 58 | * @param macAddr - MAC address of the peer |
| 59 | * |
| 60 | * @return Pointer to peer node if found, else NULL |
| 61 | */ |
| 62 | |
| 63 | static tLimIbssPeerNode *ibss_peer_find(tpAniSirGlobal pMac, |
| 64 | tSirMacAddr macAddr) |
| 65 | { |
| 66 | tLimIbssPeerNode *pTempNode = pMac->lim.gLimIbssPeerList; |
| 67 | |
| 68 | while (pTempNode != NULL) { |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 69 | if (!qdf_mem_cmp((uint8_t *) macAddr, |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 70 | (uint8_t *) &pTempNode->peerMacAddr, |
| 71 | sizeof(tSirMacAddr))) |
| 72 | break; |
| 73 | pTempNode = pTempNode->next; |
| 74 | } |
| 75 | return pTempNode; |
| 76 | } /*** end ibss_peer_find() ***/ |
| 77 | |
| 78 | /** |
| 79 | * ibss_peer_add |
| 80 | * |
| 81 | ***FUNCTION: |
| 82 | * This is called on a STA in IBSS upon receiving Beacon/ |
| 83 | * Probe Response from a peer. |
| 84 | * |
| 85 | ***LOGIC: |
| 86 | * Node is always added to the front of the list |
| 87 | * |
| 88 | ***ASSUMPTIONS: |
| 89 | * |
| 90 | ***NOTE: |
| 91 | * |
| 92 | * @param pMac - Pointer to Global MAC structure |
| 93 | * @param pPeerNode - Pointer to peer node to be added to the list. |
| 94 | * |
| 95 | * @return None |
| 96 | */ |
| 97 | |
| 98 | static tSirRetStatus |
| 99 | ibss_peer_add(tpAniSirGlobal pMac, tLimIbssPeerNode *pPeerNode) |
| 100 | { |
| 101 | #ifdef ANI_SIR_IBSS_PEER_CACHING |
| 102 | uint32_t numIbssPeers = (2 * pMac->lim.maxStation); |
| 103 | |
| 104 | if (pMac->lim.gLimNumIbssPeers >= numIbssPeers) { |
| 105 | /** |
| 106 | * Reached max number of peers to be maintained. |
| 107 | * Delete last entry & add new entry at the beginning. |
| 108 | */ |
| 109 | tLimIbssPeerNode *pTemp, *pPrev; |
| 110 | pTemp = pPrev = pMac->lim.gLimIbssPeerList; |
| 111 | while (pTemp->next != NULL) { |
| 112 | pPrev = pTemp; |
| 113 | pTemp = pTemp->next; |
| 114 | } |
| 115 | if (pTemp->beacon) { |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 116 | qdf_mem_free(pTemp->beacon); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 117 | } |
| 118 | |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 119 | qdf_mem_free(pTemp); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 120 | pPrev->next = NULL; |
| 121 | } else |
| 122 | #endif |
| 123 | pMac->lim.gLimNumIbssPeers++; |
| 124 | |
| 125 | pPeerNode->next = pMac->lim.gLimIbssPeerList; |
| 126 | pMac->lim.gLimIbssPeerList = pPeerNode; |
| 127 | |
| 128 | return eSIR_SUCCESS; |
| 129 | |
| 130 | } /*** end limAddIbssPeerToList() ***/ |
| 131 | |
| 132 | /** |
| 133 | * ibss_peer_collect |
| 134 | * |
| 135 | ***FUNCTION: |
| 136 | * This is called to collect IBSS peer information |
| 137 | * from received Beacon/Probe Response frame from it. |
| 138 | * |
| 139 | ***LOGIC: |
| 140 | * |
| 141 | ***ASSUMPTIONS: |
| 142 | * |
| 143 | ***NOTE: |
| 144 | * |
| 145 | * @param pMac - Pointer to Global MAC structure |
| 146 | * @param pBeacon - Parsed Beacon Frame structure |
| 147 | * @param pBD - Pointer to received BD |
| 148 | * @param pPeer - Pointer to IBSS peer node |
| 149 | * |
| 150 | * @return None |
| 151 | */ |
| 152 | |
| 153 | static void |
| 154 | ibss_peer_collect(tpAniSirGlobal pMac, |
| 155 | tpSchBeaconStruct pBeacon, |
| 156 | tpSirMacMgmtHdr pHdr, |
| 157 | tLimIbssPeerNode *pPeer, tpPESession psessionEntry) |
| 158 | { |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 159 | qdf_mem_copy(pPeer->peerMacAddr, pHdr->sa, sizeof(tSirMacAddr)); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 160 | |
| 161 | pPeer->capabilityInfo = pBeacon->capabilityInfo; |
| 162 | pPeer->extendedRatesPresent = pBeacon->extendedRatesPresent; |
| 163 | pPeer->edcaPresent = pBeacon->edcaPresent; |
| 164 | pPeer->wmeEdcaPresent = pBeacon->wmeEdcaPresent; |
| 165 | pPeer->wmeInfoPresent = pBeacon->wmeInfoPresent; |
| 166 | |
| 167 | if (pBeacon->IBSSParams.present) { |
| 168 | pPeer->atimIePresent = pBeacon->IBSSParams.present; |
| 169 | pPeer->peerAtimWindowLength = pBeacon->IBSSParams.atim; |
| 170 | } |
| 171 | |
| 172 | if (IS_DOT11_MODE_HT(psessionEntry->dot11mode) && |
| 173 | (pBeacon->HTCaps.present)) { |
| 174 | pPeer->htCapable = pBeacon->HTCaps.present; |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 175 | qdf_mem_copy((uint8_t *) pPeer->supportedMCSSet, |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 176 | (uint8_t *) pBeacon->HTCaps.supportedMCSSet, |
| 177 | sizeof(pPeer->supportedMCSSet)); |
| 178 | pPeer->htGreenfield = (uint8_t) pBeacon->HTCaps.greenField; |
| 179 | pPeer->htSupportedChannelWidthSet = |
| 180 | (uint8_t) pBeacon->HTCaps.supportedChannelWidthSet; |
| 181 | pPeer->htMIMOPSState = |
| 182 | (tSirMacHTMIMOPowerSaveState) pBeacon->HTCaps.mimoPowerSave; |
| 183 | pPeer->htMaxAmsduLength = |
| 184 | (uint8_t) pBeacon->HTCaps.maximalAMSDUsize; |
| 185 | pPeer->htAMpduDensity = pBeacon->HTCaps.mpduDensity; |
| 186 | pPeer->htDsssCckRate40MHzSupport = |
| 187 | (uint8_t) pBeacon->HTCaps.dsssCckMode40MHz; |
| 188 | pPeer->htShortGI20Mhz = (uint8_t) pBeacon->HTCaps.shortGI20MHz; |
| 189 | pPeer->htShortGI40Mhz = (uint8_t) pBeacon->HTCaps.shortGI40MHz; |
| 190 | pPeer->htMaxRxAMpduFactor = pBeacon->HTCaps.maxRxAMPDUFactor; |
| 191 | pPeer->htSecondaryChannelOffset = |
| 192 | pBeacon->HTInfo.secondaryChannelOffset; |
| 193 | pPeer->htLdpcCapable = (uint8_t) pBeacon->HTCaps.advCodingCap; |
| 194 | } |
| 195 | |
| 196 | /* Collect peer VHT capabilities based on the received beacon from the peer */ |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 197 | if (pBeacon->VHTCaps.present) { |
| 198 | pPeer->vhtSupportedChannelWidthSet = |
| 199 | pBeacon->VHTOperation.chanWidth; |
| 200 | pPeer->vhtCapable = pBeacon->VHTCaps.present; |
| 201 | |
| 202 | /* Collect VHT capabilities from beacon */ |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 203 | qdf_mem_copy((uint8_t *) &pPeer->VHTCaps, |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 204 | (uint8_t *) &pBeacon->VHTCaps, |
| 205 | sizeof(tDot11fIEVHTCaps)); |
| 206 | } |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 207 | pPeer->erpIePresent = pBeacon->erpPresent; |
| 208 | |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 209 | qdf_mem_copy((uint8_t *) &pPeer->supportedRates, |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 210 | (uint8_t *) &pBeacon->supportedRates, |
| 211 | pBeacon->supportedRates.numRates + 1); |
| 212 | if (pPeer->extendedRatesPresent) |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 213 | qdf_mem_copy((uint8_t *) &pPeer->extendedRates, |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 214 | (uint8_t *) &pBeacon->extendedRates, |
| 215 | pBeacon->extendedRates.numRates + 1); |
| 216 | else |
| 217 | pPeer->extendedRates.numRates = 0; |
| 218 | |
| 219 | pPeer->next = NULL; |
| 220 | } /*** end ibss_peer_collect() ***/ |
| 221 | |
| 222 | /* handle change in peer qos/wme capabilities */ |
| 223 | static void |
| 224 | ibss_sta_caps_update(tpAniSirGlobal pMac, |
| 225 | tLimIbssPeerNode *pPeerNode, tpPESession psessionEntry) |
| 226 | { |
| 227 | uint16_t peerIdx; |
| 228 | tpDphHashNode pStaDs; |
| 229 | |
| 230 | pPeerNode->beaconHBCount++; /* Update beacon count. */ |
| 231 | |
| 232 | /* if the peer node exists, update its qos capabilities */ |
| 233 | pStaDs = dph_lookup_hash_entry(pMac, pPeerNode->peerMacAddr, &peerIdx, |
| 234 | &psessionEntry->dph.dphHashTable); |
| 235 | if (pStaDs == NULL) |
| 236 | return; |
| 237 | |
| 238 | /* Update HT Capabilities */ |
| 239 | if (IS_DOT11_MODE_HT(psessionEntry->dot11mode)) { |
| 240 | pStaDs->mlmStaContext.htCapability = pPeerNode->htCapable; |
| 241 | if (pPeerNode->htCapable) { |
| 242 | pStaDs->htGreenfield = pPeerNode->htGreenfield; |
| 243 | pStaDs->htSupportedChannelWidthSet = |
| 244 | pPeerNode->htSupportedChannelWidthSet; |
Abhishek Singh | 10a0026 | 2015-10-16 16:26:14 +0530 | [diff] [blame] | 245 | pStaDs->htSecondaryChannelOffset = |
| 246 | pPeerNode->htSecondaryChannelOffset; |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 247 | pStaDs->htMIMOPSState = pPeerNode->htMIMOPSState; |
| 248 | pStaDs->htMaxAmsduLength = pPeerNode->htMaxAmsduLength; |
| 249 | pStaDs->htAMpduDensity = pPeerNode->htAMpduDensity; |
| 250 | pStaDs->htDsssCckRate40MHzSupport = |
| 251 | pPeerNode->htDsssCckRate40MHzSupport; |
| 252 | pStaDs->htShortGI20Mhz = pPeerNode->htShortGI20Mhz; |
| 253 | pStaDs->htShortGI40Mhz = pPeerNode->htShortGI40Mhz; |
| 254 | pStaDs->htMaxRxAMpduFactor = |
| 255 | pPeerNode->htMaxRxAMpduFactor; |
| 256 | /* In the future, may need to check for "delayedBA" */ |
| 257 | /* For now, it is IMMEDIATE BA only on ALL TID's */ |
| 258 | pStaDs->baPolicyFlag = 0xFF; |
| 259 | pStaDs->htLdpcCapable = pPeerNode->htLdpcCapable; |
| 260 | } |
| 261 | } |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 262 | if (IS_DOT11_MODE_VHT(psessionEntry->dot11mode)) { |
| 263 | pStaDs->mlmStaContext.vhtCapability = pPeerNode->vhtCapable; |
| 264 | if (pPeerNode->vhtCapable) { |
| 265 | pStaDs->vhtSupportedChannelWidthSet = |
| 266 | pPeerNode->vhtSupportedChannelWidthSet; |
| 267 | |
| 268 | /* If in 11AC mode and if session requires 11AC mode, consider peer's */ |
| 269 | /* max AMPDU length factor */ |
| 270 | pStaDs->htMaxRxAMpduFactor = |
| 271 | pPeerNode->VHTCaps.maxAMPDULenExp; |
| 272 | pStaDs->vhtLdpcCapable = |
| 273 | (uint8_t) pPeerNode->VHTCaps.ldpcCodingCap; |
| 274 | } |
| 275 | } |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 276 | /* peer is 11e capable but is not 11e enabled yet */ |
| 277 | /* some STA's when joining Airgo IBSS, assert qos capability even when */ |
| 278 | /* they don't suport qos. however, they do not include the edca parameter */ |
| 279 | /* set. so let's check for edcaParam in addition to the qos capability */ |
| 280 | if (pPeerNode->capabilityInfo.qos && (psessionEntry->limQosEnabled) |
| 281 | && pPeerNode->edcaPresent) { |
| 282 | pStaDs->qosMode = 1; |
| 283 | pStaDs->wmeEnabled = 0; |
| 284 | if (!pStaDs->lleEnabled) { |
| 285 | pStaDs->lleEnabled = 1; |
| 286 | /* dphSetACM(pMac, pStaDs); */ |
| 287 | } |
| 288 | return; |
| 289 | } |
| 290 | /* peer is not 11e capable now but was 11e enabled earlier */ |
| 291 | else if (pStaDs->lleEnabled) { |
| 292 | pStaDs->qosMode = 0; |
| 293 | pStaDs->lleEnabled = 0; |
| 294 | } |
| 295 | /* peer is wme capable but is not wme enabled yet */ |
| 296 | if (pPeerNode->wmeInfoPresent && psessionEntry->limWmeEnabled) { |
| 297 | pStaDs->qosMode = 1; |
| 298 | pStaDs->lleEnabled = 0; |
| 299 | if (!pStaDs->wmeEnabled) { |
| 300 | pStaDs->wmeEnabled = 1; |
| 301 | } |
| 302 | return; |
| 303 | } |
| 304 | /* When the peer device supports EDCA parameters, then we were not |
| 305 | considering. Added this code when we saw that one of the Peer Device |
| 306 | was advertising WMM param where we were not honouring that. CR# 210756 |
| 307 | */ |
| 308 | if (pPeerNode->wmeEdcaPresent && psessionEntry->limWmeEnabled) { |
| 309 | pStaDs->qosMode = 1; |
| 310 | pStaDs->lleEnabled = 0; |
| 311 | if (!pStaDs->wmeEnabled) { |
| 312 | pStaDs->wmeEnabled = 1; |
| 313 | } |
| 314 | return; |
| 315 | } |
| 316 | /* peer is not wme capable now but was wme enabled earlier */ |
| 317 | else if (pStaDs->wmeEnabled) { |
| 318 | pStaDs->qosMode = 0; |
| 319 | pStaDs->wmeEnabled = 0; |
| 320 | } |
| 321 | |
| 322 | } |
| 323 | |
| 324 | static void |
| 325 | ibss_sta_rates_update(tpAniSirGlobal pMac, |
| 326 | tpDphHashNode pStaDs, |
| 327 | tLimIbssPeerNode *pPeer, tpPESession psessionEntry) |
| 328 | { |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 329 | lim_populate_matching_rate_set(pMac, pStaDs, &pPeer->supportedRates, |
| 330 | &pPeer->extendedRates, |
| 331 | pPeer->supportedMCSSet, psessionEntry, |
Krishna Kumaar Natarajan | d1cd56e | 2016-09-30 08:43:03 -0700 | [diff] [blame] | 332 | &pPeer->VHTCaps, NULL); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 333 | pStaDs->mlmStaContext.capabilityInfo = pPeer->capabilityInfo; |
| 334 | } /*** end ibss_sta_info_update() ***/ |
| 335 | |
| 336 | /** |
| 337 | * ibss_sta_info_update |
| 338 | * |
| 339 | ***FUNCTION: |
| 340 | * This is called to program both SW & Polaris context |
| 341 | * for peer in IBSS. |
| 342 | * |
| 343 | ***LOGIC: |
| 344 | * |
| 345 | ***ASSUMPTIONS: |
| 346 | * |
| 347 | ***NOTE: |
| 348 | * |
| 349 | * @param pMac - Pointer to Global MAC structure |
| 350 | * @param pStaDs - Pointer to DPH node |
| 351 | * @param pPeer - Pointer to IBSS peer node |
| 352 | * |
| 353 | * @return None |
| 354 | */ |
| 355 | |
| 356 | static void |
| 357 | ibss_sta_info_update(tpAniSirGlobal pMac, |
| 358 | tpDphHashNode pStaDs, |
| 359 | tLimIbssPeerNode *pPeer, tpPESession psessionEntry) |
| 360 | { |
| 361 | pStaDs->staType = STA_ENTRY_PEER; |
| 362 | ibss_sta_caps_update(pMac, pPeer, psessionEntry); |
| 363 | ibss_sta_rates_update(pMac, pStaDs, pPeer, psessionEntry); |
| 364 | } /*** end ibss_sta_info_update() ***/ |
| 365 | |
| 366 | static void ibss_coalesce_free(tpAniSirGlobal pMac) |
| 367 | { |
| 368 | if (pMac->lim.ibssInfo.pHdr != NULL) |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 369 | qdf_mem_free(pMac->lim.ibssInfo.pHdr); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 370 | if (pMac->lim.ibssInfo.pBeacon != NULL) |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 371 | qdf_mem_free(pMac->lim.ibssInfo.pBeacon); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 372 | |
| 373 | pMac->lim.ibssInfo.pHdr = NULL; |
| 374 | pMac->lim.ibssInfo.pBeacon = NULL; |
| 375 | } |
| 376 | |
| 377 | /* |
| 378 | * save the beacon params for use when adding the bss |
| 379 | */ |
| 380 | static void |
| 381 | ibss_coalesce_save(tpAniSirGlobal pMac, |
| 382 | tpSirMacMgmtHdr pHdr, tpSchBeaconStruct pBeacon) |
| 383 | { |
| 384 | /* get rid of any saved info */ |
| 385 | ibss_coalesce_free(pMac); |
| 386 | |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 387 | pMac->lim.ibssInfo.pHdr = qdf_mem_malloc(sizeof(*pHdr)); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 388 | if (NULL == pMac->lim.ibssInfo.pHdr) { |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 389 | pe_err("ibbs-save: Failed malloc pHdr"); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 390 | return; |
| 391 | } |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 392 | pMac->lim.ibssInfo.pBeacon = qdf_mem_malloc(sizeof(*pBeacon)); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 393 | if (NULL == pMac->lim.ibssInfo.pBeacon) { |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 394 | pe_err("ibbs-save: Failed malloc pBeacon"); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 395 | ibss_coalesce_free(pMac); |
| 396 | return; |
| 397 | } |
| 398 | |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 399 | qdf_mem_copy(pMac->lim.ibssInfo.pHdr, pHdr, sizeof(*pHdr)); |
| 400 | qdf_mem_copy(pMac->lim.ibssInfo.pBeacon, pBeacon, sizeof(*pBeacon)); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 401 | } |
| 402 | |
| 403 | /* |
| 404 | * tries to add a new entry to dph hash node |
| 405 | * if necessary, an existing entry is eliminated |
| 406 | */ |
| 407 | static tSirRetStatus |
| 408 | ibss_dph_entry_add(tpAniSirGlobal pMac, |
| 409 | tSirMacAddr peerAddr, |
| 410 | tpDphHashNode *ppSta, tpPESession psessionEntry) |
| 411 | { |
| 412 | uint16_t peerIdx; |
| 413 | tpDphHashNode pStaDs; |
| 414 | |
| 415 | *ppSta = NULL; |
| 416 | |
| 417 | pStaDs = |
| 418 | dph_lookup_hash_entry(pMac, peerAddr, &peerIdx, |
| 419 | &psessionEntry->dph.dphHashTable); |
| 420 | if (pStaDs != NULL) { |
| 421 | /* Trying to add context for already existing STA in IBSS */ |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 422 | pe_err("STA exists already"); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 423 | lim_print_mac_addr(pMac, peerAddr, LOGE); |
| 424 | return eSIR_FAILURE; |
| 425 | } |
| 426 | |
| 427 | /** |
| 428 | * Assign an AID, delete context existing with that |
| 429 | * AID and then add an entry to hash table maintained |
| 430 | * by DPH module. |
| 431 | */ |
| 432 | peerIdx = lim_assign_peer_idx(pMac, psessionEntry); |
| 433 | |
| 434 | pStaDs = |
| 435 | dph_get_hash_entry(pMac, peerIdx, &psessionEntry->dph.dphHashTable); |
| 436 | if (pStaDs) { |
| 437 | (void)lim_del_sta(pMac, pStaDs, false /*asynchronous */, |
| 438 | psessionEntry); |
| 439 | lim_delete_dph_hash_entry(pMac, pStaDs->staAddr, peerIdx, |
| 440 | psessionEntry); |
| 441 | } |
| 442 | |
| 443 | pStaDs = |
| 444 | dph_add_hash_entry(pMac, peerAddr, peerIdx, |
| 445 | &psessionEntry->dph.dphHashTable); |
| 446 | if (pStaDs == NULL) { |
| 447 | /* Could not add hash table entry */ |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 448 | pe_err("could not add hash entry at DPH for peerIdx/aid: %d MACaddr:", |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 449 | peerIdx); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 450 | lim_print_mac_addr(pMac, peerAddr, LOGE); |
| 451 | return eSIR_FAILURE; |
| 452 | } |
| 453 | |
| 454 | *ppSta = pStaDs; |
| 455 | return eSIR_SUCCESS; |
| 456 | } |
| 457 | |
| 458 | /* send a status change notification */ |
| 459 | static void |
| 460 | ibss_status_chg_notify(tpAniSirGlobal pMac, |
| 461 | tSirMacAddr peerAddr, |
| 462 | uint16_t staIndex, |
| 463 | uint8_t ucastSig, |
| 464 | uint8_t bcastSig, uint16_t status, uint8_t sessionId) |
| 465 | { |
| 466 | |
| 467 | tLimIbssPeerNode *peerNode; |
| 468 | uint8_t *beacon = NULL; |
| 469 | uint16_t bcnLen = 0; |
| 470 | |
| 471 | peerNode = ibss_peer_find(pMac, peerAddr); |
| 472 | if (peerNode != NULL) { |
| 473 | if (peerNode->beacon == NULL) |
| 474 | peerNode->beaconLen = 0; |
| 475 | beacon = peerNode->beacon; |
| 476 | bcnLen = peerNode->beaconLen; |
| 477 | peerNode->beacon = NULL; |
| 478 | peerNode->beaconLen = 0; |
| 479 | } |
| 480 | |
| 481 | lim_send_sme_ibss_peer_ind(pMac, peerAddr, staIndex, ucastSig, bcastSig, |
| 482 | beacon, bcnLen, status, sessionId); |
| 483 | |
| 484 | if (beacon != NULL) { |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 485 | qdf_mem_free(beacon); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 486 | } |
| 487 | } |
| 488 | |
| 489 | static void ibss_bss_add(tpAniSirGlobal pMac, tpPESession psessionEntry) |
| 490 | { |
| 491 | tLimMlmStartReq mlmStartReq; |
| 492 | uint32_t cfg; |
| 493 | tpSirMacMgmtHdr pHdr = (tpSirMacMgmtHdr) pMac->lim.ibssInfo.pHdr; |
| 494 | tpSchBeaconStruct pBeacon = |
| 495 | (tpSchBeaconStruct) pMac->lim.ibssInfo.pBeacon; |
| 496 | uint8_t numExtRates = 0; |
| 497 | |
| 498 | if ((pHdr == NULL) || (pBeacon == NULL)) { |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 499 | pe_err("Unable to add BSS (no cached BSS info)"); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 500 | return; |
| 501 | } |
| 502 | |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 503 | qdf_mem_copy(psessionEntry->bssId, pHdr->bssId, sizeof(tSirMacAddr)); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 504 | |
| 505 | sir_copy_mac_addr(pHdr->bssId, psessionEntry->bssId); |
| 506 | |
| 507 | /* Copy beacon interval from sessionTable */ |
| 508 | cfg = psessionEntry->beaconParams.beaconInterval; |
| 509 | if (cfg != pBeacon->beaconInterval) |
| 510 | psessionEntry->beaconParams.beaconInterval = |
| 511 | pBeacon->beaconInterval; |
| 512 | |
| 513 | /* This function ibss_bss_add (and hence the below code) is only called during ibss coalescing. We need to |
| 514 | * adapt to peer's capability with respect to short slot time. Changes have been made to lim_apply_configuration() |
| 515 | * so that the IBSS doesnt blindly start with short slot = 1. If IBSS start is part of coalescing then it will adapt |
| 516 | * to peer's short slot using code below. |
| 517 | */ |
| 518 | /* If cfg is already set to current peer's capability then no need to set it again */ |
| 519 | if (psessionEntry->shortSlotTimeSupported != |
| 520 | pBeacon->capabilityInfo.shortSlotTime) { |
| 521 | psessionEntry->shortSlotTimeSupported = |
| 522 | pBeacon->capabilityInfo.shortSlotTime; |
| 523 | } |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 524 | qdf_mem_copy((uint8_t *) &psessionEntry->pLimStartBssReq-> |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 525 | operationalRateSet, (uint8_t *) &pBeacon->supportedRates, |
| 526 | pBeacon->supportedRates.numRates); |
| 527 | |
| 528 | /** |
| 529 | * WNI_CFG_EXTENDED_OPERATIONAL_RATE_SET CFG needs to be reset, when |
| 530 | * there is no extended rate IE present in beacon. This is especially important when |
| 531 | * supportedRateSet IE contains all the extended rates as well and STA decides to coalesce. |
| 532 | * In this IBSS coalescing scenario LIM will tear down the BSS and Add a new one. So LIM needs to |
| 533 | * reset this CFG, just in case CSR originally had set this CFG when IBSS was started from the local profile. |
| 534 | * If IBSS was started by CSR from the BssDescription, then it would reset this CFG before StartBss is issued. |
| 535 | * The idea is that the count of OpRateSet and ExtendedOpRateSet rates should not be more than 12. |
| 536 | */ |
| 537 | |
| 538 | if (pBeacon->extendedRatesPresent) |
| 539 | numExtRates = pBeacon->extendedRates.numRates; |
| 540 | if (cfg_set_str(pMac, WNI_CFG_EXTENDED_OPERATIONAL_RATE_SET, |
| 541 | (uint8_t *) &pBeacon->extendedRates.rate, |
| 542 | numExtRates) != eSIR_SUCCESS) { |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 543 | pe_err("could not update ExtendedOperRateset at CFG"); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 544 | return; |
| 545 | } |
| 546 | |
| 547 | /* |
| 548 | * Each IBSS node will advertise its own HT Capabilities instead of adapting to the Peer's capabilities |
| 549 | * If we don't do this then IBSS may not go back to full capabilities when the STA with lower capabilities |
| 550 | * leaves the IBSS. e.g. when non-CB STA joins an IBSS and then leaves, the IBSS will be stuck at non-CB mode |
| 551 | * even though all the nodes are capable of doing CB. |
| 552 | * so it is decided to leave the self HT capabilties intact. This may change if some issues are found in interop. |
| 553 | */ |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 554 | qdf_mem_set((void *)&mlmStartReq, sizeof(mlmStartReq), 0); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 555 | |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 556 | qdf_mem_copy(mlmStartReq.bssId, pHdr->bssId, sizeof(tSirMacAddr)); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 557 | mlmStartReq.rateSet.numRates = |
| 558 | psessionEntry->pLimStartBssReq->operationalRateSet.numRates; |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 559 | qdf_mem_copy(&mlmStartReq.rateSet.rate[0], |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 560 | &psessionEntry->pLimStartBssReq->operationalRateSet. |
| 561 | rate[0], mlmStartReq.rateSet.numRates); |
| 562 | mlmStartReq.bssType = eSIR_IBSS_MODE; |
| 563 | mlmStartReq.beaconPeriod = pBeacon->beaconInterval; |
| 564 | mlmStartReq.nwType = psessionEntry->pLimStartBssReq->nwType; /* psessionEntry->nwType is also OK???? */ |
| 565 | mlmStartReq.htCapable = psessionEntry->htCapability; |
| 566 | mlmStartReq.htOperMode = pMac->lim.gHTOperMode; |
| 567 | mlmStartReq.dualCTSProtection = pMac->lim.gHTDualCTSProtection; |
| 568 | mlmStartReq.txChannelWidthSet = psessionEntry->htRecommendedTxWidthSet; |
| 569 | |
| 570 | /* reading the channel num from session Table */ |
| 571 | mlmStartReq.channelNumber = psessionEntry->currentOperChannel; |
| 572 | |
| 573 | mlmStartReq.cbMode = psessionEntry->pLimStartBssReq->cbMode; |
| 574 | |
| 575 | /* Copy the SSID for RxP filtering based on SSID. */ |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 576 | qdf_mem_copy((uint8_t *) &mlmStartReq.ssId, |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 577 | (uint8_t *) &psessionEntry->pLimStartBssReq->ssId, |
| 578 | psessionEntry->pLimStartBssReq->ssId.length + 1); |
| 579 | |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 580 | pe_debug("invoking ADD_BSS as part of coalescing!"); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 581 | if (lim_mlm_add_bss(pMac, &mlmStartReq, psessionEntry) != |
| 582 | eSIR_SME_SUCCESS) { |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 583 | pe_err("AddBss failure"); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 584 | return; |
| 585 | } |
| 586 | /* Update fields in Beacon */ |
| 587 | if (sch_set_fixed_beacon_fields(pMac, psessionEntry) != eSIR_SUCCESS) { |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 588 | pe_err("Unable to set fixed Beacon fields"); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 589 | return; |
| 590 | } |
| 591 | |
| 592 | } |
| 593 | |
| 594 | /* delete the current BSS */ |
| 595 | static void ibss_bss_delete(tpAniSirGlobal pMac, tpPESession psessionEntry) |
| 596 | { |
| 597 | tSirRetStatus status; |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 598 | pe_debug("Initiating IBSS Delete BSS"); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 599 | if (psessionEntry->limMlmState != eLIM_MLM_BSS_STARTED_STATE) { |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 600 | pe_warn("Incorrect LIM MLM state for delBss: %d", |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 601 | psessionEntry->limMlmState); |
| 602 | return; |
| 603 | } |
| 604 | status = lim_del_bss(pMac, NULL, psessionEntry->bssIdx, psessionEntry); |
| 605 | if (status != eSIR_SUCCESS) |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 606 | pe_err("delBss failed for bss: %d", |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 607 | psessionEntry->bssIdx); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 608 | } |
| 609 | |
| 610 | /** |
| 611 | * lim_ibss_init |
| 612 | * |
| 613 | ***FUNCTION: |
| 614 | * This function is called while starting an IBSS |
| 615 | * to initialize list used to maintain IBSS peers. |
| 616 | * |
| 617 | ***LOGIC: |
| 618 | * |
| 619 | ***ASSUMPTIONS: |
| 620 | * |
| 621 | ***NOTE: |
| 622 | * |
| 623 | * @param pMac - Pointer to Global MAC structure |
| 624 | * @return None |
| 625 | */ |
| 626 | |
| 627 | void lim_ibss_init(tpAniSirGlobal pMac) |
| 628 | { |
| 629 | pMac->lim.gLimIbssCoalescingHappened = 0; |
| 630 | pMac->lim.gLimIbssPeerList = NULL; |
| 631 | pMac->lim.gLimNumIbssPeers = 0; |
| 632 | |
| 633 | /* ibss info - params for which ibss to join while coalescing */ |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 634 | qdf_mem_set(&pMac->lim.ibssInfo, sizeof(tAniSirLimIbss), 0); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 635 | } /*** end lim_ibss_init() ***/ |
| 636 | |
| 637 | /** |
| 638 | * lim_ibss_delete_all_peers |
| 639 | * |
| 640 | ***FUNCTION: |
| 641 | * This function is called to delete all peers. |
| 642 | * |
| 643 | ***LOGIC: |
| 644 | * |
| 645 | ***ASSUMPTIONS: |
| 646 | * |
| 647 | ***NOTE: |
| 648 | * |
| 649 | * @param pMac - Pointer to Global MAC structure |
| 650 | * @return None |
| 651 | */ |
| 652 | |
Jeff Johnson | 5948a18 | 2016-10-06 18:47:06 -0700 | [diff] [blame] | 653 | static void lim_ibss_delete_all_peers(tpAniSirGlobal pMac, |
| 654 | tpPESession psessionEntry) |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 655 | { |
| 656 | tLimIbssPeerNode *pCurrNode, *pTempNode; |
| 657 | tpDphHashNode pStaDs; |
| 658 | uint16_t peerIdx; |
| 659 | |
| 660 | pCurrNode = pTempNode = pMac->lim.gLimIbssPeerList; |
| 661 | |
| 662 | while (pCurrNode != NULL) { |
| 663 | if (!pMac->lim.gLimNumIbssPeers) { |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 664 | pe_err("Number of peers in the list is zero and node present"); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 665 | return; |
| 666 | } |
| 667 | /* Delete the dph entry for the station |
| 668 | * Since it is called to remove all peers, just delete from dph, |
| 669 | * no need to do any beacon related params i.e., dont call lim_delete_dph_hash_entry |
| 670 | */ |
| 671 | pStaDs = |
| 672 | dph_lookup_hash_entry(pMac, pCurrNode->peerMacAddr, &peerIdx, |
| 673 | &psessionEntry->dph.dphHashTable); |
| 674 | if (pStaDs) { |
| 675 | |
| 676 | ibss_status_chg_notify(pMac, pCurrNode->peerMacAddr, |
| 677 | pStaDs->staIndex, |
| 678 | pStaDs->ucUcastSig, |
| 679 | pStaDs->ucBcastSig, |
| 680 | eWNI_SME_IBSS_PEER_DEPARTED_IND, |
| 681 | psessionEntry->smeSessionId); |
| 682 | lim_release_peer_idx(pMac, peerIdx, psessionEntry); |
| 683 | dph_delete_hash_entry(pMac, pStaDs->staAddr, peerIdx, |
| 684 | &psessionEntry->dph.dphHashTable); |
| 685 | } |
| 686 | |
| 687 | pTempNode = pCurrNode->next; |
| 688 | |
| 689 | /* TODO :Sessionize this code */ |
| 690 | /* Fix CR 227642: PeerList should point to the next node since the current node is being |
| 691 | * freed in the next line. In ibss_peerfind in ibss_status_chg_notify above, we use this |
| 692 | * peer list to find the next peer. So this list needs to be updated with the no of peers left |
| 693 | * after each iteration in this while loop since one by one peers are deleted (freed) in this |
| 694 | * loop causing the lim.gLimIbssPeerList to point to some freed memory. |
| 695 | */ |
| 696 | pMac->lim.gLimIbssPeerList = pTempNode; |
| 697 | |
| 698 | if (pCurrNode->beacon) { |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 699 | qdf_mem_free(pCurrNode->beacon); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 700 | } |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 701 | qdf_mem_free(pCurrNode); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 702 | if (pMac->lim.gLimNumIbssPeers > 0) /* be paranoid */ |
| 703 | pMac->lim.gLimNumIbssPeers--; |
| 704 | pCurrNode = pTempNode; |
| 705 | } |
| 706 | |
| 707 | if (pMac->lim.gLimNumIbssPeers) |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 708 | pe_err("Number of peers: %d in the list is non-zero", |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 709 | pMac->lim.gLimNumIbssPeers); |
| 710 | |
| 711 | pMac->lim.gLimNumIbssPeers = 0; |
| 712 | pMac->lim.gLimIbssPeerList = NULL; |
| 713 | |
| 714 | } |
| 715 | |
| 716 | /** |
| 717 | * lim_ibss_delete() - This function is called while tearing down an IBSS |
| 718 | * |
| 719 | * @pMac: Pointer to Global MAC structure |
| 720 | * @psessionEntry: Pointer to session entry |
| 721 | * |
| 722 | * Return: none |
| 723 | */ |
| 724 | |
| 725 | void lim_ibss_delete(tpAniSirGlobal pMac, tpPESession psessionEntry) |
| 726 | { |
| 727 | lim_ibss_delete_all_peers(pMac, psessionEntry); |
| 728 | ibss_coalesce_free(pMac); |
| 729 | } |
| 730 | |
| 731 | /** ------------------------------------------------------------- |
| 732 | \fn lim_ibss_set_protection |
| 733 | \brief Decides all the protection related information. |
| 734 | \ |
| 735 | \param tpAniSirGlobal pMac |
| 736 | \param tSirMacAddr peerMacAddr |
| 737 | \param tpUpdateBeaconParams pBeaconParams |
| 738 | \return None |
| 739 | -------------------------------------------------------------*/ |
| 740 | static void |
| 741 | lim_ibss_set_protection(tpAniSirGlobal pMac, uint8_t enable, |
| 742 | tpUpdateBeaconParams pBeaconParams, |
| 743 | tpPESession psessionEntry) |
| 744 | { |
| 745 | |
| 746 | if (!pMac->lim.cfgProtection.fromllb) { |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 747 | pe_err("protection from 11b is disabled"); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 748 | return; |
| 749 | } |
| 750 | |
| 751 | if (enable) { |
| 752 | psessionEntry->gLim11bParams.protectionEnabled = true; |
| 753 | if (false == |
| 754 | psessionEntry->beaconParams. |
| 755 | llbCoexist /*pMac->lim.llbCoexist */) { |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 756 | pe_debug("=> IBSS: Enable Protection"); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 757 | pBeaconParams->llbCoexist = |
| 758 | psessionEntry->beaconParams.llbCoexist = true; |
| 759 | pBeaconParams->paramChangeBitmap |= |
| 760 | PARAM_llBCOEXIST_CHANGED; |
| 761 | } |
| 762 | } else if (true == |
| 763 | psessionEntry->beaconParams. |
| 764 | llbCoexist /*pMac->lim.llbCoexist */) { |
| 765 | psessionEntry->gLim11bParams.protectionEnabled = false; |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 766 | pe_debug("===> IBSS: Disable protection"); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 767 | pBeaconParams->llbCoexist = |
| 768 | psessionEntry->beaconParams.llbCoexist = false; |
| 769 | pBeaconParams->paramChangeBitmap |= PARAM_llBCOEXIST_CHANGED; |
| 770 | } |
| 771 | return; |
| 772 | } |
| 773 | |
| 774 | /** ------------------------------------------------------------- |
| 775 | \fn lim_ibss_update_protection_params |
| 776 | \brief Decides all the protection related information. |
| 777 | \ |
| 778 | \param tpAniSirGlobal pMac |
| 779 | \param tSirMacAddr peerMacAddr |
| 780 | \param tpUpdateBeaconParams pBeaconParams |
| 781 | \return None |
| 782 | -------------------------------------------------------------*/ |
| 783 | static void |
| 784 | lim_ibss_update_protection_params(tpAniSirGlobal pMac, |
| 785 | tSirMacAddr peerMacAddr, |
| 786 | tLimProtStaCacheType protStaCacheType, |
| 787 | tpPESession psessionEntry) |
| 788 | { |
| 789 | uint32_t i; |
| 790 | |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 791 | pe_debug("STA is associated Addr :"); |
Srinivas Girigowda | 8590a5f | 2017-03-10 14:28:37 -0800 | [diff] [blame] | 792 | lim_print_mac_addr(pMac, peerMacAddr, LOGD); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 793 | |
| 794 | for (i = 0; i < LIM_PROT_STA_CACHE_SIZE; i++) { |
| 795 | if (pMac->lim.protStaCache[i].active) { |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 796 | pe_debug("Addr:"); |
Srinivas Girigowda | 8590a5f | 2017-03-10 14:28:37 -0800 | [diff] [blame] | 797 | lim_print_mac_addr |
| 798 | (pMac, pMac->lim.protStaCache[i].addr, LOGD); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 799 | |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 800 | if (!qdf_mem_cmp(pMac->lim.protStaCache[i].addr, |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 801 | peerMacAddr, |
| 802 | sizeof(tSirMacAddr))) { |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 803 | pe_debug("matching cache entry at: %d already active", |
Srinivas Girigowda | 8590a5f | 2017-03-10 14:28:37 -0800 | [diff] [blame] | 804 | i); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 805 | return; |
| 806 | } |
| 807 | } |
| 808 | } |
| 809 | |
| 810 | for (i = 0; i < LIM_PROT_STA_CACHE_SIZE; i++) { |
| 811 | if (!pMac->lim.protStaCache[i].active) |
| 812 | break; |
| 813 | } |
| 814 | |
| 815 | if (i >= LIM_PROT_STA_CACHE_SIZE) { |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 816 | pe_err("No space in ProtStaCache"); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 817 | return; |
| 818 | } |
| 819 | |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 820 | qdf_mem_copy(pMac->lim.protStaCache[i].addr, |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 821 | peerMacAddr, sizeof(tSirMacAddr)); |
| 822 | |
| 823 | pMac->lim.protStaCache[i].protStaCacheType = protStaCacheType; |
| 824 | pMac->lim.protStaCache[i].active = true; |
| 825 | if (eLIM_PROT_STA_CACHE_TYPE_llB == protStaCacheType) { |
| 826 | psessionEntry->gLim11bParams.numSta++; |
| 827 | } else if (eLIM_PROT_STA_CACHE_TYPE_llG == protStaCacheType) { |
| 828 | psessionEntry->gLim11gParams.numSta++; |
| 829 | } |
| 830 | } |
| 831 | |
| 832 | /** ------------------------------------------------------------- |
| 833 | \fn lim_ibss_decide_protection |
| 834 | \brief Decides all the protection related information. |
| 835 | \ |
| 836 | \param tpAniSirGlobal pMac |
| 837 | \param tSirMacAddr peerMacAddr |
| 838 | \param tpUpdateBeaconParams pBeaconParams |
| 839 | \return None |
| 840 | -------------------------------------------------------------*/ |
| 841 | static void |
| 842 | lim_ibss_decide_protection(tpAniSirGlobal pMac, tpDphHashNode pStaDs, |
| 843 | tpUpdateBeaconParams pBeaconParams, |
| 844 | tpPESession psessionEntry) |
| 845 | { |
| 846 | tSirRFBand rfBand = SIR_BAND_UNKNOWN; |
| 847 | uint32_t phyMode; |
| 848 | tLimProtStaCacheType protStaCacheType = |
| 849 | eLIM_PROT_STA_CACHE_TYPE_INVALID; |
| 850 | |
| 851 | pBeaconParams->paramChangeBitmap = 0; |
| 852 | |
| 853 | if (NULL == pStaDs) { |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 854 | pe_err("pStaDs is NULL"); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 855 | return; |
| 856 | } |
| 857 | |
| 858 | lim_get_rf_band_new(pMac, &rfBand, psessionEntry); |
| 859 | if (SIR_BAND_2_4_GHZ == rfBand) { |
| 860 | lim_get_phy_mode(pMac, &phyMode, psessionEntry); |
| 861 | |
| 862 | /* We are 11G or 11n. Check if we need protection from 11b Stations. */ |
| 863 | if ((phyMode == WNI_CFG_PHY_MODE_11G) |
| 864 | || (psessionEntry->htCapability)) { |
| 865 | /* As we found in the past, it is possible that a 11n STA sends |
| 866 | * Beacon with HT IE but not ERP IE. So the absense of ERP IE |
| 867 | * in the Beacon is not enough to conclude that STA is 11b. |
| 868 | */ |
| 869 | if ((pStaDs->erpEnabled == eHAL_CLEAR) && |
| 870 | (!pStaDs->mlmStaContext.htCapability)) { |
| 871 | protStaCacheType = eLIM_PROT_STA_CACHE_TYPE_llB; |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 872 | pe_err("Enable protection from 11B"); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 873 | lim_ibss_set_protection(pMac, true, |
| 874 | pBeaconParams, |
| 875 | psessionEntry); |
| 876 | } |
| 877 | } |
| 878 | } |
| 879 | lim_ibss_update_protection_params(pMac, pStaDs->staAddr, protStaCacheType, |
| 880 | psessionEntry); |
| 881 | return; |
| 882 | } |
| 883 | |
| 884 | /** |
| 885 | * lim_ibss_peer_find() |
| 886 | * |
| 887 | ***FUNCTION: |
| 888 | * This function is called while adding a context at |
| 889 | * DPH & Polaris for a peer in IBSS. |
| 890 | * If peer is found in the list, capabilities from the |
| 891 | * returned BSS description are used at DPH node & Polaris. |
| 892 | * |
| 893 | ***LOGIC: |
| 894 | * |
| 895 | ***ASSUMPTIONS: |
| 896 | * |
| 897 | ***NOTE: |
| 898 | * |
| 899 | * @param macAddr - MAC address of the peer |
| 900 | * |
| 901 | * @return Pointer to peer node if found, else NULL |
| 902 | */ |
| 903 | tLimIbssPeerNode *lim_ibss_peer_find(tpAniSirGlobal pMac, tSirMacAddr macAddr) |
| 904 | { |
| 905 | return ibss_peer_find(pMac, macAddr); |
| 906 | } |
| 907 | |
| 908 | /** |
| 909 | * lim_ibss_sta_add() |
| 910 | * |
| 911 | ***FUNCTION: |
| 912 | * This function is called to add an STA context in IBSS role |
| 913 | * whenever a data frame is received from/for a STA that failed |
| 914 | * hash lookup at DPH. |
| 915 | * |
| 916 | ***LOGIC: |
| 917 | * |
| 918 | ***ASSUMPTIONS: |
| 919 | * NA |
| 920 | * |
| 921 | ***NOTE: |
| 922 | * NA |
| 923 | * |
| 924 | * @param pMac Pointer to Global MAC structure |
| 925 | * @param peerAdddr MAC address of the peer being added |
| 926 | * @return retCode Indicates success or failure return code |
| 927 | * @return |
| 928 | */ |
| 929 | |
| 930 | tSirRetStatus |
| 931 | lim_ibss_sta_add(tpAniSirGlobal pMac, void *pBody, tpPESession psessionEntry) |
| 932 | { |
| 933 | tSirRetStatus retCode = eSIR_SUCCESS; |
| 934 | tpDphHashNode pStaDs; |
| 935 | tLimIbssPeerNode *pPeerNode; |
| 936 | tLimMlmStates prevState; |
| 937 | tSirMacAddr *pPeerAddr = (tSirMacAddr *) pBody; |
| 938 | tUpdateBeaconParams beaconParams; |
| 939 | |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 940 | qdf_mem_set((uint8_t *) &beaconParams, sizeof(tUpdateBeaconParams), 0); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 941 | |
| 942 | if (pBody == 0) { |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 943 | pe_err("Invalid IBSS AddSta"); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 944 | return eSIR_FAILURE; |
| 945 | } |
| 946 | |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 947 | pe_debug("Rx Add-Ibss-Sta for MAC:"); |
Srinivas Girigowda | 8590a5f | 2017-03-10 14:28:37 -0800 | [diff] [blame] | 948 | lim_print_mac_addr(pMac, *pPeerAddr, LOGD); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 949 | |
| 950 | pPeerNode = ibss_peer_find(pMac, *pPeerAddr); |
| 951 | if (NULL != pPeerNode) { |
| 952 | retCode = |
| 953 | ibss_dph_entry_add(pMac, *pPeerAddr, &pStaDs, |
| 954 | psessionEntry); |
| 955 | if (eSIR_SUCCESS == retCode) { |
| 956 | prevState = pStaDs->mlmStaContext.mlmState; |
| 957 | pStaDs->erpEnabled = pPeerNode->erpIePresent; |
| 958 | |
| 959 | ibss_sta_info_update(pMac, pStaDs, pPeerNode, |
| 960 | psessionEntry); |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 961 | pe_debug("initiating ADD STA for the IBSS peer"); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 962 | retCode = |
| 963 | lim_add_sta(pMac, pStaDs, false, psessionEntry); |
| 964 | if (retCode != eSIR_SUCCESS) { |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 965 | pe_err("ibss-sta-add failed (reason %x)", |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 966 | retCode); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 967 | lim_print_mac_addr(pMac, *pPeerAddr, LOGE); |
| 968 | pStaDs->mlmStaContext.mlmState = prevState; |
| 969 | dph_delete_hash_entry(pMac, pStaDs->staAddr, |
| 970 | pStaDs->assocId, |
| 971 | &psessionEntry->dph. |
| 972 | dphHashTable); |
| 973 | } else { |
| 974 | if (pMac->lim.gLimProtectionControl != |
| 975 | WNI_CFG_FORCE_POLICY_PROTECTION_DISABLE) |
| 976 | lim_ibss_decide_protection(pMac, pStaDs, |
| 977 | &beaconParams, |
| 978 | psessionEntry); |
| 979 | |
| 980 | if (beaconParams.paramChangeBitmap) { |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 981 | pe_debug("---> Update Beacon Params"); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 982 | sch_set_fixed_beacon_fields(pMac, |
| 983 | psessionEntry); |
| 984 | beaconParams.bssIdx = |
| 985 | psessionEntry->bssIdx; |
| 986 | lim_send_beacon_params(pMac, &beaconParams, |
| 987 | psessionEntry); |
| 988 | } |
| 989 | } |
| 990 | } else { |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 991 | pe_err("hashTblAdd failed reason: %x", retCode); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 992 | lim_print_mac_addr(pMac, *pPeerAddr, LOGE); |
| 993 | } |
| 994 | } else { |
| 995 | retCode = eSIR_FAILURE; |
| 996 | } |
| 997 | |
| 998 | return retCode; |
| 999 | } |
Abhishek Singh | 3df7661 | 2017-05-16 14:05:32 +0530 | [diff] [blame] | 1000 | |
Abhishek Singh | 79e7750 | 2015-12-30 17:11:49 +0530 | [diff] [blame] | 1001 | /** |
Abhishek Singh | 3df7661 | 2017-05-16 14:05:32 +0530 | [diff] [blame] | 1002 | * lim_ibss_search_and_delete_peer()- to cleanup the IBSS |
| 1003 | * peer from lim ibss peer list |
Abhishek Singh | 79e7750 | 2015-12-30 17:11:49 +0530 | [diff] [blame] | 1004 | * |
| 1005 | * @mac_ptr: Pointer to Global MAC structure |
| 1006 | * @session_entry: Session entry |
| 1007 | * @mac_addr: Mac Address of the IBSS peer |
| 1008 | * |
Abhishek Singh | 3df7661 | 2017-05-16 14:05:32 +0530 | [diff] [blame] | 1009 | * This function is called to cleanup the IBSS peer from |
| 1010 | * lim ibss peer list |
Abhishek Singh | 79e7750 | 2015-12-30 17:11:49 +0530 | [diff] [blame] | 1011 | * |
| 1012 | * Return: None |
| 1013 | * |
| 1014 | */ |
| 1015 | static void |
Abhishek Singh | 3df7661 | 2017-05-16 14:05:32 +0530 | [diff] [blame] | 1016 | lim_ibss_search_and_delete_peer(tpAniSirGlobal mac_ctx, |
Abhishek Singh | 79e7750 | 2015-12-30 17:11:49 +0530 | [diff] [blame] | 1017 | tpPESession session_entry, tSirMacAddr mac_addr) |
| 1018 | { |
| 1019 | tLimIbssPeerNode *temp_node, *prev_node; |
| 1020 | tLimIbssPeerNode *temp_next_node = NULL; |
Abhishek Singh | 79e7750 | 2015-12-30 17:11:49 +0530 | [diff] [blame] | 1021 | |
Abhishek Singh | 3df7661 | 2017-05-16 14:05:32 +0530 | [diff] [blame] | 1022 | prev_node = temp_node = mac_ctx->lim.gLimIbssPeerList; |
Abhishek Singh | 79e7750 | 2015-12-30 17:11:49 +0530 | [diff] [blame] | 1023 | |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 1024 | pe_debug(" PEER ADDR :" MAC_ADDRESS_STR, |
Abhishek Singh | 79e7750 | 2015-12-30 17:11:49 +0530 | [diff] [blame] | 1025 | MAC_ADDR_ARRAY(mac_addr)); |
| 1026 | |
| 1027 | /** Compare Peer */ |
| 1028 | while (NULL != temp_node) { |
| 1029 | temp_next_node = temp_node->next; |
| 1030 | |
| 1031 | /* Delete the STA with MAC address */ |
| 1032 | if (!qdf_mem_cmp((uint8_t *) mac_addr, |
| 1033 | (uint8_t *) &temp_node->peerMacAddr, |
| 1034 | sizeof(tSirMacAddr))) { |
Abhishek Singh | 3df7661 | 2017-05-16 14:05:32 +0530 | [diff] [blame] | 1035 | if (temp_node == |
| 1036 | mac_ctx->lim.gLimIbssPeerList) { |
| 1037 | mac_ctx->lim.gLimIbssPeerList = |
| 1038 | temp_node->next; |
| 1039 | prev_node = |
| 1040 | mac_ctx->lim.gLimIbssPeerList; |
| 1041 | } else |
| 1042 | prev_node->next = temp_node->next; |
| 1043 | if (temp_node->beacon) |
| 1044 | qdf_mem_free(temp_node->beacon); |
Abhishek Singh | 79e7750 | 2015-12-30 17:11:49 +0530 | [diff] [blame] | 1045 | |
Abhishek Singh | 3df7661 | 2017-05-16 14:05:32 +0530 | [diff] [blame] | 1046 | qdf_mem_free(temp_node); |
| 1047 | mac_ctx->lim.gLimNumIbssPeers--; |
Abhishek Singh | 79e7750 | 2015-12-30 17:11:49 +0530 | [diff] [blame] | 1048 | |
Abhishek Singh | 3df7661 | 2017-05-16 14:05:32 +0530 | [diff] [blame] | 1049 | temp_node = temp_next_node; |
| 1050 | break; |
Abhishek Singh | 79e7750 | 2015-12-30 17:11:49 +0530 | [diff] [blame] | 1051 | } |
| 1052 | prev_node = temp_node; |
| 1053 | temp_node = temp_next_node; |
| 1054 | } |
| 1055 | /* |
| 1056 | * if it is the last peer walking out, we better |
| 1057 | * we set IBSS state to inactive. |
| 1058 | */ |
Abhishek Singh | 3df7661 | 2017-05-16 14:05:32 +0530 | [diff] [blame] | 1059 | if (0 == mac_ctx->lim.gLimNumIbssPeers) { |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 1060 | pe_debug("Last STA from IBSS walked out"); |
Abhishek Singh | 79e7750 | 2015-12-30 17:11:49 +0530 | [diff] [blame] | 1061 | session_entry->limIbssActive = false; |
| 1062 | } |
| 1063 | } |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1064 | |
Abhishek Singh | 3df7661 | 2017-05-16 14:05:32 +0530 | [diff] [blame] | 1065 | /** |
| 1066 | * lim_ibss_delete_peer()- to delete IBSS peer |
| 1067 | * |
| 1068 | * @mac_ptr: Pointer to Global MAC structure |
| 1069 | * @session_entry: Session entry |
| 1070 | * @mac_addr: Mac Address of the IBSS peer |
| 1071 | * |
| 1072 | * This function is called delete IBSS peer. |
| 1073 | * |
| 1074 | * Return: None |
| 1075 | * |
| 1076 | */ |
| 1077 | static void |
| 1078 | lim_ibss_delete_peer(tpAniSirGlobal mac_ctx, |
| 1079 | tpPESession session_entry, tSirMacAddr mac_addr) |
| 1080 | { |
| 1081 | tpDphHashNode sta = NULL; |
| 1082 | uint16_t peer_idx = 0; |
| 1083 | |
| 1084 | pe_debug("Delete peer :" MAC_ADDRESS_STR, |
| 1085 | MAC_ADDR_ARRAY(mac_addr)); |
| 1086 | |
| 1087 | sta = dph_lookup_hash_entry(mac_ctx, mac_addr, |
| 1088 | &peer_idx, |
| 1089 | &session_entry->dph. |
| 1090 | dphHashTable); |
| 1091 | |
| 1092 | if (!sta) { |
| 1093 | pe_err("DPH Entry for STA %pM is missing", |
| 1094 | mac_addr); |
| 1095 | return; |
| 1096 | } |
| 1097 | |
| 1098 | if (STA_INVALID_IDX != sta->staIndex) { |
| 1099 | lim_del_sta(mac_ctx, sta, |
| 1100 | true, session_entry); |
| 1101 | } else { |
| 1102 | /* |
| 1103 | * This mean ADD STA failed, thus remove the sta from |
| 1104 | * from database and no need to send del sta to firmware |
| 1105 | * and peer departed indication to upper layer. |
| 1106 | */ |
| 1107 | lim_delete_dph_hash_entry(mac_ctx, sta->staAddr, |
| 1108 | peer_idx, session_entry); |
| 1109 | lim_release_peer_idx(mac_ctx, |
| 1110 | peer_idx, session_entry); |
| 1111 | lim_ibss_search_and_delete_peer(mac_ctx, |
| 1112 | session_entry, mac_addr); |
| 1113 | } |
| 1114 | |
| 1115 | } |
| 1116 | |
| 1117 | void lim_process_ibss_del_sta_rsp(tpAniSirGlobal mac_ctx, |
| 1118 | struct scheduler_msg *lim_msg, |
| 1119 | tpPESession pe_session) |
| 1120 | { |
| 1121 | tpDphHashNode sta_ds = NULL; |
| 1122 | tpDeleteStaParams del_sta_params = (tpDeleteStaParams) lim_msg->bodyptr; |
| 1123 | tSirResultCodes status = eSIR_SME_SUCCESS; |
| 1124 | |
| 1125 | if (!del_sta_params) { |
| 1126 | pe_err("del_sta_params is NULL"); |
| 1127 | return; |
| 1128 | } |
| 1129 | if (!LIM_IS_IBSS_ROLE(pe_session)) { |
| 1130 | pe_err("Session %d is not IBSS role", del_sta_params->assocId); |
| 1131 | status = eSIR_SME_REFUSED; |
| 1132 | goto skip_event; |
| 1133 | } |
| 1134 | |
| 1135 | sta_ds = dph_get_hash_entry(mac_ctx, del_sta_params->assocId, |
| 1136 | &pe_session->dph.dphHashTable); |
| 1137 | if (!sta_ds) { |
| 1138 | pe_err("DPH Entry for STA %X is missing", |
| 1139 | del_sta_params->assocId); |
| 1140 | status = eSIR_SME_REFUSED; |
| 1141 | goto skip_event; |
| 1142 | } |
| 1143 | |
| 1144 | if (QDF_STATUS_SUCCESS != del_sta_params->status) { |
| 1145 | pe_err("DEL STA failed!"); |
| 1146 | status = eSIR_SME_REFUSED; |
| 1147 | goto skip_event; |
| 1148 | } |
| 1149 | pe_debug("Deleted STA associd %d staId %d MAC " MAC_ADDRESS_STR, |
| 1150 | sta_ds->assocId, sta_ds->staIndex, |
| 1151 | MAC_ADDR_ARRAY(sta_ds->staAddr)); |
| 1152 | |
| 1153 | lim_delete_dph_hash_entry(mac_ctx, sta_ds->staAddr, |
| 1154 | del_sta_params->assocId, pe_session); |
| 1155 | lim_release_peer_idx(mac_ctx, |
| 1156 | del_sta_params->assocId, pe_session); |
| 1157 | |
| 1158 | ibss_status_chg_notify(mac_ctx, |
| 1159 | del_sta_params->staMac, |
| 1160 | sta_ds->staIndex, |
| 1161 | sta_ds->ucUcastSig, sta_ds->ucBcastSig, |
| 1162 | eWNI_SME_IBSS_PEER_DEPARTED_IND, |
| 1163 | pe_session->smeSessionId); |
| 1164 | |
| 1165 | lim_ibss_search_and_delete_peer(mac_ctx, |
| 1166 | pe_session, del_sta_params->staMac); |
| 1167 | |
| 1168 | skip_event: |
| 1169 | qdf_mem_free(del_sta_params); |
| 1170 | lim_msg->bodyptr = NULL; |
| 1171 | } |
| 1172 | |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1173 | /* handle the response from HAL for an ADD STA request */ |
| 1174 | tSirRetStatus |
| 1175 | lim_ibss_add_sta_rsp(tpAniSirGlobal pMac, void *msg, tpPESession psessionEntry) |
| 1176 | { |
| 1177 | tpDphHashNode pStaDs; |
| 1178 | uint16_t peerIdx; |
| 1179 | tpAddStaParams pAddStaParams = (tpAddStaParams) msg; |
| 1180 | |
| 1181 | SET_LIM_PROCESS_DEFD_MESGS(pMac, true); |
| 1182 | if (pAddStaParams == NULL) { |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 1183 | pe_err("IBSS: ADD_STA_RSP with no body!"); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1184 | return eSIR_FAILURE; |
| 1185 | } |
| 1186 | |
| 1187 | pStaDs = |
| 1188 | dph_lookup_hash_entry(pMac, pAddStaParams->staMac, &peerIdx, |
| 1189 | &psessionEntry->dph.dphHashTable); |
| 1190 | if (pStaDs == NULL) { |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 1191 | pe_err("IBSS: ADD_STA_RSP for unknown MAC addr: "MAC_ADDRESS_STR, |
Abhishek Singh | 79e7750 | 2015-12-30 17:11:49 +0530 | [diff] [blame] | 1192 | MAC_ADDR_ARRAY(pAddStaParams->staMac)); |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 1193 | qdf_mem_free(pAddStaParams); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1194 | return eSIR_FAILURE; |
| 1195 | } |
| 1196 | |
Anurag Chouhan | fb54ab0 | 2016-02-18 18:00:46 +0530 | [diff] [blame] | 1197 | if (pAddStaParams->status != QDF_STATUS_SUCCESS) { |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 1198 | pe_err("IBSS: ADD_STA_RSP error: %x for MAC:"MAC_ADDRESS_STR, |
Abhishek Singh | 79e7750 | 2015-12-30 17:11:49 +0530 | [diff] [blame] | 1199 | pAddStaParams->status, |
| 1200 | MAC_ADDR_ARRAY(pAddStaParams->staMac)); |
Abhishek Singh | 3df7661 | 2017-05-16 14:05:32 +0530 | [diff] [blame] | 1201 | lim_ibss_delete_peer(pMac, |
Abhishek Singh | 79e7750 | 2015-12-30 17:11:49 +0530 | [diff] [blame] | 1202 | psessionEntry, pAddStaParams->staMac); |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 1203 | qdf_mem_free(pAddStaParams); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1204 | return eSIR_FAILURE; |
| 1205 | } |
| 1206 | |
| 1207 | pStaDs->bssId = pAddStaParams->bssIdx; |
| 1208 | pStaDs->staIndex = pAddStaParams->staIdx; |
| 1209 | pStaDs->ucUcastSig = pAddStaParams->ucUcastSig; |
| 1210 | pStaDs->ucBcastSig = pAddStaParams->ucBcastSig; |
| 1211 | pStaDs->valid = 1; |
| 1212 | pStaDs->mlmStaContext.mlmState = eLIM_MLM_LINK_ESTABLISHED_STATE; |
| 1213 | |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 1214 | pe_debug("IBSS: sending IBSS_NEW_PEER msg to SME!"); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1215 | |
| 1216 | ibss_status_chg_notify(pMac, pAddStaParams->staMac, |
| 1217 | pStaDs->staIndex, pStaDs->ucUcastSig, |
| 1218 | pStaDs->ucBcastSig, |
| 1219 | eWNI_SME_IBSS_NEW_PEER_IND, |
| 1220 | psessionEntry->smeSessionId); |
| 1221 | |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 1222 | qdf_mem_free(pAddStaParams); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1223 | |
| 1224 | return eSIR_SUCCESS; |
| 1225 | } |
| 1226 | |
| 1227 | void lim_ibss_del_bss_rsp_when_coalescing(tpAniSirGlobal pMac, void *msg, |
| 1228 | tpPESession psessionEntry) |
| 1229 | { |
| 1230 | tpDeleteBssParams pDelBss = (tpDeleteBssParams) msg; |
| 1231 | |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 1232 | pe_debug("IBSS: DEL_BSS_RSP Rcvd during coalescing!"); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1233 | |
| 1234 | if (pDelBss == NULL) { |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 1235 | pe_err("IBSS: DEL_BSS_RSP(coalesce) with no body!"); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1236 | goto end; |
| 1237 | } |
| 1238 | |
Anurag Chouhan | fb54ab0 | 2016-02-18 18:00:46 +0530 | [diff] [blame] | 1239 | if (pDelBss->status != QDF_STATUS_SUCCESS) { |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 1240 | pe_err("IBSS: DEL_BSS_RSP(coalesce) error: %x Bss: %d", |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1241 | pDelBss->status, pDelBss->bssIdx); |
| 1242 | goto end; |
| 1243 | } |
| 1244 | /* Delete peer entries. */ |
| 1245 | lim_ibss_delete_all_peers(pMac, psessionEntry); |
| 1246 | |
| 1247 | /* add the new bss */ |
| 1248 | ibss_bss_add(pMac, psessionEntry); |
| 1249 | |
| 1250 | end: |
| 1251 | if (pDelBss != NULL) |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 1252 | qdf_mem_free(pDelBss); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1253 | } |
| 1254 | |
| 1255 | void lim_ibss_add_bss_rsp_when_coalescing(tpAniSirGlobal pMac, void *msg, |
| 1256 | tpPESession pSessionEntry) |
| 1257 | { |
| 1258 | uint8_t infoLen; |
| 1259 | tSirSmeNewBssInfo newBssInfo; |
| 1260 | |
| 1261 | tpAddBssParams pAddBss = (tpAddBssParams) msg; |
| 1262 | |
| 1263 | tpSirMacMgmtHdr pHdr = (tpSirMacMgmtHdr) pMac->lim.ibssInfo.pHdr; |
| 1264 | tpSchBeaconStruct pBeacon = |
| 1265 | (tpSchBeaconStruct) pMac->lim.ibssInfo.pBeacon; |
| 1266 | |
| 1267 | if ((pHdr == NULL) || (pBeacon == NULL)) { |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 1268 | pe_err("Unable to handle AddBssRspWhenCoalescing (no cached BSS info)"); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1269 | goto end; |
| 1270 | } |
| 1271 | /* Inform Host of IBSS coalescing */ |
| 1272 | infoLen = sizeof(tSirMacAddr) + sizeof(tSirMacChanNum) + |
| 1273 | sizeof(uint8_t) + pBeacon->ssId.length + 1; |
| 1274 | |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 1275 | qdf_mem_set((void *)&newBssInfo, sizeof(newBssInfo), 0); |
| 1276 | qdf_mem_copy(newBssInfo.bssId.bytes, pHdr->bssId, QDF_MAC_ADDR_SIZE); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1277 | newBssInfo.channelNumber = (tSirMacChanNum) pAddBss->currentOperChannel; |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 1278 | qdf_mem_copy((uint8_t *) &newBssInfo.ssId, |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1279 | (uint8_t *) &pBeacon->ssId, pBeacon->ssId.length + 1); |
| 1280 | |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 1281 | pe_debug("Sending JOINED_NEW_BSS notification to SME"); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1282 | |
| 1283 | lim_send_sme_wm_status_change_ntf(pMac, eSIR_SME_JOINED_NEW_BSS, |
| 1284 | (uint32_t *) &newBssInfo, |
| 1285 | infoLen, pSessionEntry->smeSessionId); |
| 1286 | { |
| 1287 | /* Configure beacon and send beacons to HAL */ |
| 1288 | lim_send_beacon_ind(pMac, pSessionEntry); |
| 1289 | } |
| 1290 | |
| 1291 | end: |
| 1292 | ibss_coalesce_free(pMac); |
| 1293 | } |
| 1294 | |
| 1295 | void lim_ibss_del_bss_rsp(tpAniSirGlobal pMac, void *msg, tpPESession psessionEntry) |
| 1296 | { |
| 1297 | tSirResultCodes rc = eSIR_SME_SUCCESS; |
| 1298 | tpDeleteBssParams pDelBss = (tpDeleteBssParams) msg; |
| 1299 | tSirMacAddr nullBssid = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; |
| 1300 | |
| 1301 | SET_LIM_PROCESS_DEFD_MESGS(pMac, true); |
| 1302 | if (pDelBss == NULL) { |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 1303 | pe_err("IBSS: DEL_BSS_RSP with no body!"); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1304 | rc = eSIR_SME_REFUSED; |
| 1305 | goto end; |
| 1306 | } |
| 1307 | |
| 1308 | psessionEntry = pe_find_session_by_session_id(pMac, pDelBss->sessionId); |
| 1309 | if (psessionEntry == NULL) { |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 1310 | pe_err("Session Does not exist for given sessionID"); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1311 | goto end; |
| 1312 | } |
| 1313 | |
| 1314 | /* |
| 1315 | * If delBss was issued as part of IBSS Coalescing, gLimIbssCoalescingHappened flag will be true. |
| 1316 | * BSS has to be added again in this scenario, so this case needs to be handled separately. |
| 1317 | * If delBss was issued as a result of trigger from SME_STOP_BSS Request, then limSme state changes to |
| 1318 | * 'IDLE' and gLimIbssCoalescingHappened flag will be false. In this case STOP BSS RSP has to be sent to SME. |
| 1319 | */ |
| 1320 | if (true == pMac->lim.gLimIbssCoalescingHappened) { |
| 1321 | |
| 1322 | lim_ibss_del_bss_rsp_when_coalescing(pMac, msg, psessionEntry); |
| 1323 | return; |
| 1324 | } |
| 1325 | |
Anurag Chouhan | fb54ab0 | 2016-02-18 18:00:46 +0530 | [diff] [blame] | 1326 | if (pDelBss->status != QDF_STATUS_SUCCESS) { |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 1327 | pe_err("IBSS: DEL_BSS_RSP error: %x Bss: %d", |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1328 | pDelBss->status, pDelBss->bssIdx); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1329 | rc = eSIR_SME_STOP_BSS_FAILURE; |
| 1330 | goto end; |
| 1331 | } |
| 1332 | |
| 1333 | if (lim_set_link_state(pMac, eSIR_LINK_IDLE_STATE, nullBssid, |
| 1334 | psessionEntry->selfMacAddr, NULL, |
| 1335 | NULL) != eSIR_SUCCESS) { |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 1336 | pe_err("IBSS: DEL_BSS_RSP setLinkState failed"); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1337 | rc = eSIR_SME_REFUSED; |
| 1338 | goto end; |
| 1339 | } |
| 1340 | |
| 1341 | lim_ibss_delete(pMac, psessionEntry); |
| 1342 | |
| 1343 | dph_hash_table_class_init(pMac, &psessionEntry->dph.dphHashTable); |
| 1344 | lim_delete_pre_auth_list(pMac); |
| 1345 | |
| 1346 | psessionEntry->limMlmState = eLIM_MLM_IDLE_STATE; |
| 1347 | |
| 1348 | MTRACE(mac_trace |
| 1349 | (pMac, TRACE_CODE_MLM_STATE, psessionEntry->peSessionId, |
| 1350 | psessionEntry->limMlmState)); |
| 1351 | |
| 1352 | psessionEntry->limSystemRole = eLIM_STA_ROLE; |
| 1353 | |
| 1354 | /* Change the short slot operating mode to Default (which is 1 for now) so that when IBSS starts next time with Libra |
| 1355 | * as originator, it picks up the default. This enables us to remove hard coding of short slot = 1 from lim_apply_configuration |
| 1356 | */ |
| 1357 | psessionEntry->shortSlotTimeSupported = WNI_CFG_SHORT_SLOT_TIME_STADEF; |
| 1358 | |
| 1359 | end: |
| 1360 | if (pDelBss != NULL) |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 1361 | qdf_mem_free(pDelBss); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1362 | /* Delete PE session once BSS is deleted */ |
| 1363 | if (NULL != psessionEntry) { |
| 1364 | lim_send_sme_rsp(pMac, eWNI_SME_STOP_BSS_RSP, rc, |
| 1365 | psessionEntry->smeSessionId, |
| 1366 | psessionEntry->transactionId); |
| 1367 | pe_delete_session(pMac, psessionEntry); |
| 1368 | psessionEntry = NULL; |
| 1369 | } |
| 1370 | } |
| 1371 | |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1372 | /** |
| 1373 | * lim_ibss_coalesce() |
| 1374 | * |
| 1375 | ***FUNCTION: |
| 1376 | * This function is called upon receiving Beacon/Probe Response |
| 1377 | * while operating in IBSS mode. |
| 1378 | * |
| 1379 | ***LOGIC: |
| 1380 | * |
| 1381 | ***ASSUMPTIONS: |
| 1382 | * |
| 1383 | ***NOTE: |
| 1384 | * |
| 1385 | * @param pMac - Pointer to Global MAC structure |
| 1386 | * @param pBeacon - Parsed Beacon Frame structure |
| 1387 | * @param pBD - Pointer to received BD |
| 1388 | * |
| 1389 | * @return Status whether to process or ignore received Beacon Frame |
| 1390 | */ |
| 1391 | |
| 1392 | tSirRetStatus |
| 1393 | lim_ibss_coalesce(tpAniSirGlobal pMac, |
| 1394 | tpSirMacMgmtHdr pHdr, |
| 1395 | tpSchBeaconStruct pBeacon, |
| 1396 | uint8_t *pIEs, |
| 1397 | uint32_t ieLen, uint16_t fTsfLater, tpPESession psessionEntry) |
| 1398 | { |
| 1399 | uint16_t peerIdx; |
| 1400 | tSirMacAddr currentBssId; |
| 1401 | tLimIbssPeerNode *pPeerNode; |
| 1402 | tpDphHashNode pStaDs; |
| 1403 | tUpdateBeaconParams beaconParams; |
| 1404 | |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 1405 | qdf_mem_set((uint8_t *) &beaconParams, sizeof(tUpdateBeaconParams), 0); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1406 | |
| 1407 | sir_copy_mac_addr(currentBssId, psessionEntry->bssId); |
| 1408 | |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 1409 | pe_debug("Current BSSID :" MAC_ADDRESS_STR " Received BSSID :" |
| 1410 | MAC_ADDRESS_STR, MAC_ADDR_ARRAY(currentBssId), |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1411 | MAC_ADDR_ARRAY(pHdr->bssId)); |
| 1412 | |
| 1413 | /* Check for IBSS Coalescing only if Beacon is from different BSS */ |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 1414 | if (qdf_mem_cmp(currentBssId, pHdr->bssId, sizeof(tSirMacAddr)) |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1415 | && psessionEntry->isCoalesingInIBSSAllowed) { |
| 1416 | /* |
| 1417 | * If STA entry is already available in the LIM hash table, then it is |
| 1418 | * possible that the peer may have left and rejoined within the heartbeat |
| 1419 | * timeout. In the offloaded case with 32 peers, the HB timeout is whopping |
| 1420 | * 128 seconds. In that case, the FW will not let any frames come in until |
| 1421 | * atleast the last sequence number is received before the peer is left |
| 1422 | * Hence, if the coalescing peer is already there in the peer list and if |
| 1423 | * the BSSID matches then, invoke delSta() to cleanup the entries. We will |
| 1424 | * let the peer coalesce when we receive next beacon from the peer |
| 1425 | */ |
| 1426 | pPeerNode = ibss_peer_find(pMac, pHdr->sa); |
| 1427 | if (NULL != pPeerNode) { |
Abhishek Singh | 3df7661 | 2017-05-16 14:05:32 +0530 | [diff] [blame] | 1428 | lim_ibss_delete_peer(pMac, psessionEntry, |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1429 | pHdr->sa); |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 1430 | pe_warn("Peer attempting to reconnect before HB timeout, deleted"); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1431 | return eSIR_LIM_IGNORE_BEACON; |
| 1432 | } |
| 1433 | |
| 1434 | if (!fTsfLater) { /* No Coalescing happened. */ |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 1435 | pe_warn("No Coalescing happened"); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1436 | return eSIR_LIM_IGNORE_BEACON; |
| 1437 | } |
| 1438 | /* |
| 1439 | * IBSS Coalescing happened. |
| 1440 | * save the received beacon, and delete the current BSS. The rest of the |
| 1441 | * processing will be done in the delBss response processing |
| 1442 | */ |
| 1443 | pMac->lim.gLimIbssCoalescingHappened = true; |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1444 | ibss_coalesce_save(pMac, pHdr, pBeacon); |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 1445 | pe_debug("IBSS Coalescing happened Delete BSSID :" MAC_ADDRESS_STR, |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1446 | MAC_ADDR_ARRAY(currentBssId)); |
| 1447 | ibss_bss_delete(pMac, psessionEntry); |
| 1448 | return eSIR_SUCCESS; |
| 1449 | } else { |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 1450 | if (qdf_mem_cmp |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1451 | (currentBssId, pHdr->bssId, sizeof(tSirMacAddr))) |
| 1452 | return eSIR_LIM_IGNORE_BEACON; |
| 1453 | } |
| 1454 | |
| 1455 | /* STA in IBSS mode and SSID matches with ours */ |
| 1456 | pPeerNode = ibss_peer_find(pMac, pHdr->sa); |
| 1457 | if (pPeerNode == NULL) { |
| 1458 | /* Peer not in the list - Collect BSS description & add to the list */ |
| 1459 | uint32_t frameLen; |
| 1460 | tSirRetStatus retCode; |
| 1461 | |
| 1462 | /* |
| 1463 | * Limit the Max number of IBSS Peers allowed as the max |
| 1464 | * number of STA's allowed |
| 1465 | * pMac->lim.gLimNumIbssPeers will be increamented after exiting |
| 1466 | * this function. so we will add additional 1 to compare against |
| 1467 | * pMac->lim.gLimIbssStaLimit |
| 1468 | */ |
| 1469 | if ((pMac->lim.gLimNumIbssPeers + 1) >= |
| 1470 | pMac->lim.gLimIbssStaLimit) { |
| 1471 | /*Print every 100th time */ |
| 1472 | if (pMac->lim.ibss_retry_cnt % 100 == 0) { |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 1473 | pe_debug("**** MAX STA LIMIT HAS REACHED ****"); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1474 | } |
| 1475 | pMac->lim.ibss_retry_cnt++; |
| 1476 | return eSIR_LIM_MAX_STA_REACHED_ERROR; |
| 1477 | } |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 1478 | pe_debug("IBSS Peer node does not exist, adding it"); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1479 | frameLen = |
| 1480 | sizeof(tLimIbssPeerNode) + ieLen - sizeof(uint32_t); |
| 1481 | |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 1482 | pPeerNode = qdf_mem_malloc((uint16_t) frameLen); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1483 | if (NULL == pPeerNode) { |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 1484 | pe_err("alloc fail %d bytes storing IBSS peer info", |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1485 | frameLen); |
| 1486 | return eSIR_MEM_ALLOC_FAILED; |
| 1487 | } |
| 1488 | |
| 1489 | pPeerNode->beacon = NULL; |
| 1490 | pPeerNode->beaconLen = 0; |
| 1491 | |
| 1492 | ibss_peer_collect(pMac, pBeacon, pHdr, pPeerNode, |
| 1493 | psessionEntry); |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 1494 | pPeerNode->beacon = qdf_mem_malloc(ieLen); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1495 | if (NULL == pPeerNode->beacon) { |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 1496 | pe_err("Unable to allocate memory to store beacon"); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1497 | } else { |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 1498 | qdf_mem_copy(pPeerNode->beacon, pIEs, ieLen); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1499 | pPeerNode->beaconLen = (uint16_t) ieLen; |
| 1500 | } |
| 1501 | ibss_peer_add(pMac, pPeerNode); |
| 1502 | |
| 1503 | pStaDs = |
| 1504 | dph_lookup_hash_entry(pMac, pPeerNode->peerMacAddr, &peerIdx, |
| 1505 | &psessionEntry->dph.dphHashTable); |
| 1506 | if (pStaDs != NULL) { |
| 1507 | /* / DPH node already exists for the peer */ |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 1508 | pe_warn("DPH Node present for just learned peer"); |
Srinivas Girigowda | 8590a5f | 2017-03-10 14:28:37 -0800 | [diff] [blame] | 1509 | lim_print_mac_addr(pMac, pPeerNode->peerMacAddr, LOGD); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1510 | ibss_sta_info_update(pMac, pStaDs, pPeerNode, |
| 1511 | psessionEntry); |
| 1512 | return eSIR_SUCCESS; |
| 1513 | } |
| 1514 | retCode = |
| 1515 | lim_ibss_sta_add(pMac, pPeerNode->peerMacAddr, psessionEntry); |
| 1516 | if (retCode != eSIR_SUCCESS) { |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 1517 | pe_err("lim-ibss-sta-add failed reason: %x", retCode); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1518 | lim_print_mac_addr(pMac, pPeerNode->peerMacAddr, LOGE); |
| 1519 | return retCode; |
| 1520 | } |
| 1521 | /* Decide protection mode */ |
| 1522 | pStaDs = |
| 1523 | dph_lookup_hash_entry(pMac, pPeerNode->peerMacAddr, &peerIdx, |
| 1524 | &psessionEntry->dph.dphHashTable); |
| 1525 | if (pMac->lim.gLimProtectionControl != |
| 1526 | WNI_CFG_FORCE_POLICY_PROTECTION_DISABLE) |
| 1527 | lim_ibss_decide_protection(pMac, pStaDs, &beaconParams, |
| 1528 | psessionEntry); |
| 1529 | |
| 1530 | if (beaconParams.paramChangeBitmap) { |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 1531 | pe_err("beaconParams.paramChangeBitmap=1 ---> Update Beacon Params"); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1532 | sch_set_fixed_beacon_fields(pMac, psessionEntry); |
| 1533 | beaconParams.bssIdx = psessionEntry->bssIdx; |
| 1534 | lim_send_beacon_params(pMac, &beaconParams, psessionEntry); |
| 1535 | } |
| 1536 | } else |
| 1537 | ibss_sta_caps_update(pMac, pPeerNode, psessionEntry); |
| 1538 | |
| 1539 | if (psessionEntry->limSmeState != eLIM_SME_NORMAL_STATE) |
| 1540 | return eSIR_SUCCESS; |
| 1541 | |
| 1542 | /* Received Beacon from same IBSS we're */ |
| 1543 | /* currently part of. Inform Roaming algorithm */ |
| 1544 | /* if not already that IBSS is active. */ |
| 1545 | if (psessionEntry->limIbssActive == false) { |
| 1546 | limResetHBPktCount(psessionEntry); |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 1547 | pe_warn("Partner joined our IBSS, Sending IBSS_ACTIVE Notification to SME"); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1548 | psessionEntry->limIbssActive = true; |
| 1549 | lim_send_sme_wm_status_change_ntf(pMac, eSIR_SME_IBSS_ACTIVE, NULL, 0, |
| 1550 | psessionEntry->smeSessionId); |
| 1551 | } |
| 1552 | |
| 1553 | return eSIR_SUCCESS; |
| 1554 | } /*** end lim_handle_ibs_scoalescing() ***/ |
| 1555 | |
| 1556 | /** |
| 1557 | * lim_ibss_heart_beat_handle() - handle IBSS hearbeat failure |
| 1558 | * |
| 1559 | * @mac_ctx: global mac context |
| 1560 | * @session: PE session entry |
| 1561 | * |
| 1562 | * Hanlde IBSS hearbeat failure. |
| 1563 | * |
| 1564 | * Return: None. |
| 1565 | */ |
| 1566 | void lim_ibss_heart_beat_handle(tpAniSirGlobal mac_ctx, tpPESession session) |
| 1567 | { |
| 1568 | tLimIbssPeerNode *tempnode, *prevnode; |
| 1569 | tLimIbssPeerNode *temp_next = NULL; |
| 1570 | uint16_t peer_idx = 0; |
| 1571 | tpDphHashNode stads = 0; |
| 1572 | uint32_t threshold = 0; |
| 1573 | uint16_t sta_idx = 0; |
| 1574 | uint8_t ucast_sig = 0; |
| 1575 | uint8_t bcast_sig = 0; |
| 1576 | |
| 1577 | /* |
| 1578 | * MLM BSS is started and if PE in scanmode then MLM state will be |
| 1579 | * waiting for probe resp. If Heart beat timeout triggers during this |
| 1580 | * corner case then we need to reactivate HeartBeat timer. |
| 1581 | */ |
| 1582 | if (session->limMlmState != eLIM_MLM_BSS_STARTED_STATE) |
| 1583 | return; |
| 1584 | |
| 1585 | /* If LinkMonitor is Disabled */ |
| 1586 | if (!mac_ctx->sys.gSysEnableLinkMonitorMode) |
| 1587 | return; |
| 1588 | |
| 1589 | prevnode = tempnode = mac_ctx->lim.gLimIbssPeerList; |
| 1590 | threshold = (mac_ctx->lim.gLimNumIbssPeers / 4) + 1; |
| 1591 | |
| 1592 | /* Monitor the HeartBeat with the Individual PEERS in the IBSS */ |
| 1593 | while (tempnode != NULL) { |
| 1594 | temp_next = tempnode->next; |
| 1595 | if (tempnode->beaconHBCount) { |
| 1596 | /* There was a beacon for this peer during heart beat */ |
| 1597 | tempnode->beaconHBCount = 0; |
| 1598 | tempnode->heartbeatFailure = 0; |
| 1599 | prevnode = tempnode; |
| 1600 | tempnode = temp_next; |
| 1601 | continue; |
| 1602 | } |
| 1603 | |
| 1604 | /* There wasnt any beacon received during heartbeat timer. */ |
| 1605 | tempnode->heartbeatFailure++; |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 1606 | pe_err("Heartbeat fail: %d thres: %d", |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1607 | tempnode->heartbeatFailure, mac_ctx->lim.gLimNumIbssPeers); |
| 1608 | if (tempnode->heartbeatFailure >= threshold) { |
| 1609 | /* Remove this entry from the list. */ |
| 1610 | stads = dph_lookup_hash_entry(mac_ctx, |
| 1611 | tempnode->peerMacAddr, &peer_idx, |
| 1612 | &session->dph.dphHashTable); |
| 1613 | if (stads) { |
| 1614 | sta_idx = stads->staIndex; |
| 1615 | ucast_sig = stads->ucUcastSig; |
| 1616 | bcast_sig = stads->ucBcastSig; |
| 1617 | |
| 1618 | (void)lim_del_sta(mac_ctx, stads, false, |
| 1619 | session); |
| 1620 | lim_delete_dph_hash_entry(mac_ctx, |
| 1621 | stads->staAddr, peer_idx, session); |
| 1622 | lim_release_peer_idx(mac_ctx, peer_idx, |
| 1623 | session); |
| 1624 | /* Send indication. */ |
| 1625 | ibss_status_chg_notify(mac_ctx, |
| 1626 | tempnode->peerMacAddr, sta_idx, |
| 1627 | ucast_sig, bcast_sig, |
| 1628 | eWNI_SME_IBSS_PEER_DEPARTED_IND, |
| 1629 | session->smeSessionId); |
| 1630 | } |
| 1631 | if (tempnode == mac_ctx->lim.gLimIbssPeerList) { |
| 1632 | mac_ctx->lim.gLimIbssPeerList = tempnode->next; |
| 1633 | prevnode = mac_ctx->lim.gLimIbssPeerList; |
| 1634 | } else { |
| 1635 | prevnode->next = tempnode->next; |
| 1636 | } |
| 1637 | |
Kapil Gupta | c797b62 | 2016-10-18 12:05:44 +0530 | [diff] [blame] | 1638 | if (tempnode->beacon) |
| 1639 | qdf_mem_free(tempnode->beacon); |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 1640 | qdf_mem_free(tempnode); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1641 | mac_ctx->lim.gLimNumIbssPeers--; |
| 1642 | |
| 1643 | /* we deleted current node, so prevNode remains same. */ |
| 1644 | tempnode = temp_next; |
| 1645 | continue; |
| 1646 | } |
| 1647 | prevnode = tempnode; |
| 1648 | tempnode = temp_next; |
| 1649 | } |
| 1650 | |
| 1651 | /* |
| 1652 | * General IBSS Activity Monitor, |
| 1653 | * check if in IBSS Mode we are received any Beacons |
| 1654 | */ |
| 1655 | if (mac_ctx->lim.gLimNumIbssPeers) { |
| 1656 | if (session->LimRxedBeaconCntDuringHB < |
| 1657 | MAX_NO_BEACONS_PER_HEART_BEAT_INTERVAL) |
| 1658 | mac_ctx->lim.gLimHeartBeatBeaconStats[ |
| 1659 | session->LimRxedBeaconCntDuringHB]++; |
| 1660 | else |
| 1661 | mac_ctx->lim.gLimHeartBeatBeaconStats[0]++; |
| 1662 | |
| 1663 | /* Reset number of beacons received */ |
| 1664 | limResetHBPktCount(session); |
| 1665 | return; |
| 1666 | } else { |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 1667 | pe_warn("Heartbeat Failure"); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1668 | mac_ctx->lim.gLimHBfailureCntInLinkEstState++; |
| 1669 | |
| 1670 | if (session->limIbssActive == true) { |
| 1671 | /* |
| 1672 | * We don't receive Beacon frames from any |
| 1673 | * other STA in IBSS. Announce IBSS inactive |
| 1674 | * to Roaming algorithm |
| 1675 | */ |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 1676 | pe_warn("Alone in IBSS"); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1677 | session->limIbssActive = false; |
| 1678 | |
| 1679 | lim_send_sme_wm_status_change_ntf(mac_ctx, |
| 1680 | eSIR_SME_IBSS_INACTIVE, NULL, 0, |
| 1681 | session->smeSessionId); |
| 1682 | } |
| 1683 | } |
| 1684 | } |
| 1685 | |
| 1686 | /** |
| 1687 | * lim_ibss_decide_protection_on_delete() - decides protection related info. |
| 1688 | * |
| 1689 | * @mac_ctx: global mac context |
| 1690 | * @stads: station hash node |
| 1691 | * @bcn_param: beacon parameters |
| 1692 | * @session: PE session entry |
| 1693 | * |
| 1694 | * Decides all the protection related information. |
| 1695 | * |
| 1696 | * Return: None |
| 1697 | */ |
| 1698 | void lim_ibss_decide_protection_on_delete(tpAniSirGlobal mac_ctx, |
| 1699 | tpDphHashNode stads, |
| 1700 | tpUpdateBeaconParams bcn_param, |
| 1701 | tpPESession session) |
| 1702 | { |
| 1703 | uint32_t phymode; |
| 1704 | tHalBitVal erpenabled = eHAL_CLEAR; |
| 1705 | tSirRFBand rfband = SIR_BAND_UNKNOWN; |
| 1706 | uint32_t i; |
| 1707 | |
| 1708 | if (NULL == stads) |
| 1709 | return; |
| 1710 | |
| 1711 | lim_get_rf_band_new(mac_ctx, &rfband, session); |
| 1712 | if (SIR_BAND_2_4_GHZ != rfband) |
| 1713 | return; |
| 1714 | |
| 1715 | lim_get_phy_mode(mac_ctx, &phymode, session); |
| 1716 | erpenabled = stads->erpEnabled; |
| 1717 | /* we are HT or 11G and 11B station is getting deleted. */ |
| 1718 | if (((phymode == WNI_CFG_PHY_MODE_11G) || |
| 1719 | session->htCapability) && (erpenabled == eHAL_CLEAR)) { |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 1720 | pe_err("%d A legacy STA is disassociated Addr is", |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1721 | session->gLim11bParams.numSta); |
| 1722 | lim_print_mac_addr(mac_ctx, stads->staAddr, LOGE); |
| 1723 | if (session->gLim11bParams.numSta == 0) { |
Nishank Aggarwal | e11ec7b | 2017-03-24 17:40:40 +0530 | [diff] [blame] | 1724 | pe_err("No 11B STA exists. Disable protection"); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1725 | lim_ibss_set_protection(mac_ctx, false, |
| 1726 | bcn_param, session); |
| 1727 | } |
| 1728 | |
| 1729 | for (i = 0; i < LIM_PROT_STA_CACHE_SIZE; i++) { |
| 1730 | if (!mac_ctx->lim.protStaCache[i].active) |
| 1731 | continue; |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 1732 | if (!qdf_mem_cmp(mac_ctx->lim.protStaCache[i].addr, |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1733 | stads->staAddr, sizeof(tSirMacAddr))) { |
| 1734 | session->gLim11bParams.numSta--; |
| 1735 | mac_ctx->lim.protStaCache[i].active = false; |
| 1736 | break; |
| 1737 | } |
| 1738 | } |
| 1739 | |
| 1740 | } |
| 1741 | } |
| 1742 | |
| 1743 | /** ----------------------------------------------------------------- |
| 1744 | \fn __lim_ibss_peer_inactivity_handler |
| 1745 | \brief Internal function. Deletes FW indicated peer which is inactive |
| 1746 | \ |
| 1747 | \param tpAniSirGlobal pMac |
| 1748 | \param tpPESession psessionEntry |
| 1749 | \param tpSirIbssPeerInactivityInd peerInactivityInd |
| 1750 | \return None |
| 1751 | -----------------------------------------------------------------*/ |
| 1752 | static void |
| 1753 | __lim_ibss_peer_inactivity_handler(tpAniSirGlobal pMac, |
| 1754 | tpPESession psessionEntry, |
| 1755 | tpSirIbssPeerInactivityInd peerInactivityInd) |
| 1756 | { |
| 1757 | if (psessionEntry->limMlmState != eLIM_MLM_BSS_STARTED_STATE) { |
| 1758 | return; |
| 1759 | } |
| 1760 | |
| 1761 | /* delete the peer for which heartbeat is observed */ |
Abhishek Singh | 3df7661 | 2017-05-16 14:05:32 +0530 | [diff] [blame] | 1762 | lim_ibss_delete_peer(pMac, psessionEntry, |
Srinivas Girigowda | 01d1c3c | 2015-11-25 16:54:41 -0800 | [diff] [blame] | 1763 | peerInactivityInd->peer_addr.bytes); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1764 | } |
| 1765 | |
| 1766 | /** ------------------------------------------------------------- |
| 1767 | \fn lim_process_ibss_peer_inactivity |
| 1768 | \brief Peer inactivity message handler |
| 1769 | \ |
| 1770 | \param tpAniSirGlobal pMac |
| 1771 | \param void* buf |
| 1772 | \return None |
| 1773 | -------------------------------------------------------------*/ |
| 1774 | void lim_process_ibss_peer_inactivity(tpAniSirGlobal pMac, void *buf) |
| 1775 | { |
| 1776 | /* |
| 1777 | * --------------- HEARTBEAT OFFLOAD CASE ------------------ |
| 1778 | * This message handler is executed when the firmware identifies |
| 1779 | * inactivity from one or more peer devices. We will come here |
| 1780 | * for every inactive peer device |
| 1781 | */ |
| 1782 | uint8_t i; |
| 1783 | |
| 1784 | tSirIbssPeerInactivityInd *peerInactivityInd = |
| 1785 | (tSirIbssPeerInactivityInd *) buf; |
| 1786 | |
| 1787 | /* |
| 1788 | * If IBSS is not started or heartbeat offload is not enabled |
| 1789 | * we should not handle this request |
| 1790 | */ |
| 1791 | if (eLIM_STA_IN_IBSS_ROLE != pMac->lim.gLimSystemRole && |
| 1792 | !IS_IBSS_HEARTBEAT_OFFLOAD_FEATURE_ENABLE) { |
| 1793 | return; |
| 1794 | } |
| 1795 | |
| 1796 | /** If LinkMonitor is Disabled */ |
| 1797 | if (!pMac->sys.gSysEnableLinkMonitorMode) { |
| 1798 | return; |
| 1799 | } |
| 1800 | |
| 1801 | for (i = 0; i < pMac->lim.maxBssId; i++) { |
| 1802 | if (true == pMac->lim.gpSession[i].valid && |
| 1803 | eSIR_IBSS_MODE == pMac->lim.gpSession[i].bssType) { |
| 1804 | __lim_ibss_peer_inactivity_handler(pMac, |
| 1805 | &pMac->lim.gpSession[i], |
| 1806 | peerInactivityInd); |
| 1807 | break; |
| 1808 | } |
| 1809 | } |
| 1810 | } |