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qcacld-3.0: Move Reassociation utils into a separate file

浏览代码 
Move all the reassociation related utilities to a separate
file for easy maintenance across different projects

CRs-Fixed: 978905
Change-Id: I86809ac48659dc91222624fec616bab6533d75dd
这个提交包含在：
Varun Reddy Yeturu
2016-02-11 07:10:22 -08:00
提交者 Gerrit - the friendly Code Review server
父节点 c3843188c5
当前提交 99ff7f0b1a
共修改 6 个文件，包含 565 行新增和 541 行删除
下载 Patch 文件 下载 Diff 文件 展开所有文件 折叠所有文件

1
Kbuild
查看文件

@@ -401,6 +401,7 @@ MAC_LIM_OBJS := $(MAC_SRC_DIR)/pe/lim/lim_aid_mgmt.o \
$(MAC_SRC_DIR)/pe/lim/lim_admit_control.o \
$(MAC_SRC_DIR)/pe/lim/lim_api.o \
$(MAC_SRC_DIR)/pe/lim/lim_assoc_utils.o \
$(MAC_SRC_DIR)/pe/lim/lim_reassoc_utils.o \
$(MAC_SRC_DIR)/pe/lim/lim_debug.o \
$(MAC_SRC_DIR)/pe/lim/lim_ft.o \
$(MAC_SRC_DIR)/pe/lim/lim_ft_preauth.o \

167
core/mac/src/pe/lim/lim_assoc_utils.c
查看文件

@@ -1346,120 +1346,6 @@ lim_decide_short_slot(tpAniSirGlobal mac_ctx, tpDphHashNode sta_ds,
}
}
void
lim_post_reassoc_failure(tpAniSirGlobal pMac,
tSirResultCodes resultCode,
uint16_t protStatusCode, tpPESession psessionEntry)
{
tLimMlmReassocCnf mlmReassocCnf;
psessionEntry->limMlmState = eLIM_MLM_LINK_ESTABLISHED_STATE;
MTRACE(mac_trace
(pMac, TRACE_CODE_MLM_STATE, psessionEntry->peSessionId,
eLIM_MLM_LINK_ESTABLISHED_STATE));
/* 'Change' timer for future activations */
lim_deactivate_and_change_timer(pMac, eLIM_REASSOC_FAIL_TIMER);
mlmReassocCnf.resultCode = resultCode;
mlmReassocCnf.protStatusCode = protStatusCode;
/* Update PE session Id */
mlmReassocCnf.sessionId = psessionEntry->peSessionId;
lim_post_sme_message(pMac,
LIM_MLM_REASSOC_CNF, (uint32_t *) &mlmReassocCnf);
} /*** end lim_post_reassoc_failure() ***/
/**
* lim_restore_pre_reassoc_state()
*
***FUNCTION:
* This function is called on STA role whenever Reasociation
* Response with a reject code is received from AP.
*
***LOGIC:
* Reassociation failure timer is stopped, Old (or current) AP's
* context is restored both at Polaris & software
*
***ASSUMPTIONS:
*
***NOTE:
*
* @param pMac - Pointer to Global MAC structure
* @param resultCode - Result code that specifies why Reassociation
* attemp failed
*
* @return None
*/
void
lim_restore_pre_reassoc_state(tpAniSirGlobal pMac,
tSirResultCodes resultCode,
uint16_t protStatusCode, tpPESession psessionEntry)
{
tLimMlmReassocCnf mlmReassocCnf;
lim_log(pMac, LOG1,
FL("sessionid: %d protStatusCode: %d resultCode: %d"),
psessionEntry->smeSessionId, protStatusCode, resultCode);
psessionEntry->limMlmState = eLIM_MLM_LINK_ESTABLISHED_STATE;
MTRACE(mac_trace
(pMac, TRACE_CODE_MLM_STATE, psessionEntry->peSessionId,
eLIM_MLM_LINK_ESTABLISHED_STATE));
/* 'Change' timer for future activations */
lim_deactivate_and_change_timer(pMac, eLIM_REASSOC_FAIL_TIMER);
lim_set_channel(pMac, psessionEntry->currentOperChannel,
psessionEntry->ch_center_freq_seg0,
psessionEntry->ch_center_freq_seg1,
psessionEntry->ch_width,
psessionEntry->maxTxPower,
psessionEntry->peSessionId);
/** @ToDo : Need to Integrate the STOP the DataTransfer to the AP from 11H code */
mlmReassocCnf.resultCode = resultCode;
mlmReassocCnf.protStatusCode = protStatusCode;
/* Update PE session Id */
mlmReassocCnf.sessionId = psessionEntry->peSessionId;
lim_post_sme_message(pMac,
LIM_MLM_REASSOC_CNF, (uint32_t *) &mlmReassocCnf);
} /*** end lim_restore_pre_reassoc_state() ***/
/**
* lim_is_reassoc_in_progress()
*
***FUNCTION:
* This function is called to see if STA is in wt-reassoc-rsp state.
*
***LOGIC:
*
***ASSUMPTIONS:
*
***NOTE:
*
* @param pMac - Pointer to Global MAC structure
*
* @return true When STA is waiting for Reassoc response from AP \n
* else false
*/
bool lim_is_reassoc_in_progress(tpAniSirGlobal pMac, tpPESession psessionEntry)
{
if (psessionEntry == NULL) {
return false;
}
if ((LIM_IS_STA_ROLE(psessionEntry) ||
LIM_IS_BT_AMP_STA_ROLE(psessionEntry)) &&
((psessionEntry->limSmeState == eLIM_SME_WT_REASSOC_STATE) ||
(psessionEntry->limSmeState ==
eLIM_SME_WT_REASSOC_LINK_FAIL_STATE)))
return true;
return false;
} /*** end lim_is_reassoc_in_progress() ***/
/**
* lim_populate_vht_mcs_set - function to populate vht mcs rate set
* @mac_ctx: pointer to global mac structure
@@ -2724,59 +2610,6 @@ lim_del_sta(tpAniSirGlobal pMac,
return retCode;
}
/**
* lim_add_ft_sta_self()- function to add STA once we have connected with a
* new AP
* @mac_ctx: pointer to global mac structure
* @assoc_id: association id for the station connection
* @session_entry: pe session entr
*
* This function is called to add a STA once we have connected with a new
* AP, that we have performed an FT to.
*
* The Add STA Response is created and now after the ADD Bss Is Successful
* we add the self sta. We update with the association id from the reassoc
* response from the AP.
*
* Return: eSIR_SUCCESS on success else eSirRetStatus failure codes
*/
tSirRetStatus lim_add_ft_sta_self(tpAniSirGlobal mac_ctx, uint16_t assoc_id,
tpPESession session_entry)
{
tpAddStaParams add_sta_params = NULL;
tSirRetStatus ret_code = eSIR_SUCCESS;
tSirMsgQ msg_q;
add_sta_params = session_entry->ftPEContext.pAddStaReq;
add_sta_params->assocId = assoc_id;
add_sta_params->smesessionId = session_entry->smeSessionId;
msg_q.type = WMA_ADD_STA_REQ;
msg_q.reserved = 0;
msg_q.bodyptr = add_sta_params;
msg_q.bodyval = 0;
QDF_TRACE(QDF_MODULE_ID_PE, QDF_TRACE_LEVEL_DEBUG,
"Sending WMA_ADD_STA_REQ (aid %d)",
add_sta_params->assocId);
MTRACE(mac_trace_msg_tx(mac_ctx, session_entry->peSessionId,
msg_q.type));
session_entry->limPrevMlmState = session_entry->limMlmState;
MTRACE(mac_trace(mac_ctx, TRACE_CODE_MLM_STATE,
session_entry->peSessionId, eLIM_MLM_WT_ADD_STA_RSP_STATE));
session_entry->limMlmState = eLIM_MLM_WT_ADD_STA_RSP_STATE;
ret_code = wma_post_ctrl_msg(mac_ctx, &msg_q);
if (eSIR_SUCCESS != ret_code) {
lim_log(mac_ctx, LOGE,
FL("Posting WMA_ADD_STA_REQ to HAL failed, reason=%X"),
ret_code);
qdf_mem_free(add_sta_params);
}
session_entry->ftPEContext.pAddStaReq = NULL;
return ret_code;
}
/**
* lim_add_sta_self()

3
core/mac/src/pe/lim/lim_assoc_utils.h
查看文件

@@ -84,6 +84,9 @@ lim_populate_matching_rate_set(tpAniSirGlobal pMac,
uint8_t *pSupportedMCSSet,
tpPESession psessionEntry,
tDot11fIEVHTCaps * pVHTCaps);
void lim_handle_del_bss_in_re_assoc_context(tpAniSirGlobal pMac,
tpDphHashNode pStaDs, tpPESession psessionEntry);
#define MCSMAPMASK1x1 0x3
#define MCSMAPMASK2x2 0xC

50
core/mac/src/pe/lim/lim_process_assoc_rsp_frame.c
查看文件

@@ -302,55 +302,6 @@ void lim_update_assoc_sta_datas(tpAniSirGlobal mac_ctx,
#endif
}
/**
* @function : lim_update_re_assoc_globals
*
* @brief : This function is called to Update the Globals (LIM) during ReAssoc.
*
***LOGIC:
*
***ASSUMPTIONS:
*
***NOTE:
*
* @param pMac - Pointer to Global MAC structure
* @param pAssocRsp - Pointer to Association Response Structure
*
* @return None
*/
void lim_update_re_assoc_globals(tpAniSirGlobal pMac, tpSirAssocRsp pAssocRsp,
tpPESession psessionEntry)
{
/* Update the current Bss Information */
qdf_mem_copy(psessionEntry->bssId,
psessionEntry->limReAssocbssId, sizeof(tSirMacAddr));
psessionEntry->currentOperChannel = psessionEntry->limReassocChannelId;
psessionEntry->htSecondaryChannelOffset =
psessionEntry->reAssocHtSupportedChannelWidthSet;
psessionEntry->htRecommendedTxWidthSet =
psessionEntry->reAssocHtRecommendedTxWidthSet;
psessionEntry->htSecondaryChannelOffset =
psessionEntry->reAssocHtSecondaryChannelOffset;
psessionEntry->limCurrentBssCaps = psessionEntry->limReassocBssCaps;
psessionEntry->limCurrentBssQosCaps =
psessionEntry->limReassocBssQosCaps;
psessionEntry->limCurrentBssPropCap =
psessionEntry->limReassocBssPropCap;
qdf_mem_copy((uint8_t *) &psessionEntry->ssId,
(uint8_t *) &psessionEntry->limReassocSSID,
psessionEntry->limReassocSSID.length + 1);
/* Store assigned AID for TIM processing */
psessionEntry->limAID = pAssocRsp->aid & 0x3FFF;
/** Set the State Back to ReAssoc Rsp*/
psessionEntry->limMlmState = eLIM_MLM_WT_REASSOC_RSP_STATE;
MTRACE(mac_trace
(pMac, TRACE_CODE_MLM_STATE, psessionEntry->peSessionId,
psessionEntry->limMlmState));
}
/**
* lim_update_ric_data() - update session with ric data
* @mac_ctx: Pointer to Global MAC structure
@@ -398,7 +349,6 @@ static void lim_update_ric_data(tpAniSirGlobal mac_ctx,
}
#ifdef FEATURE_WLAN_ESE
/**
* lim_update_ese_tspec() - update session with Tspec info.
* @mac_ctx: Pointer to Global MAC structure

324
core/mac/src/pe/lim/lim_process_mlm_rsp_messages.c
查看文件

@@ -69,9 +69,6 @@ void lim_process_mlm_disassoc_cnf(tpAniSirGlobal, uint32_t *);
void lim_process_mlm_deauth_ind(tpAniSirGlobal, uint32_t *);
void lim_process_mlm_deauth_cnf(tpAniSirGlobal, uint32_t *);
void lim_process_mlm_purge_sta_ind(tpAniSirGlobal, uint32_t *);
static void lim_handle_del_bss_in_re_assoc_context(tpAniSirGlobal pMac,
tpDphHashNode pStaDs,
tpPESession psessionEntry);
void lim_get_session_info(tpAniSirGlobal pMac, uint8_t *, uint8_t *, uint16_t *);
static void
lim_process_btamp_add_bss_rsp(tpAniSirGlobal pMac, tpSirMsgQ limMsgQ,
@@ -3274,164 +3271,6 @@ void lim_process_switch_channel_rsp(tpAniSirGlobal pMac, void *body)
qdf_mem_free(body);
}
/**
* @function : lim_handle_del_bss_in_re_assoc_context
* @brief : While Processing the ReAssociation Response Frame in STA,
* a. immediately after receiving the Reassoc Response the RxCleanUp is
* being issued and the end of DelBSS the new BSS is being added.
*
* b .If an AP rejects the ReAssociation (Disassoc / Deauth) with some context
* change, We need to update CSR with ReAssocCNF Response with the
* ReAssoc Fail and the reason Code, that is also being handled in the DELBSS
* context only
*
* @param : pMac - tpAniSirGlobal
* pStaDs - Station Descriptor
*
* @return : none
*/
static void
lim_handle_del_bss_in_re_assoc_context(tpAniSirGlobal pMac, tpDphHashNode pStaDs,
tpPESession psessionEntry)
{
tLimMlmReassocCnf mlmReassocCnf;
/*
* Skipped the DeleteDPH Hash Entry as we need it for the new BSS
* Set the MlmState to IDLE
*/
psessionEntry->limMlmState = eLIM_MLM_IDLE_STATE;
/* Update PE session Id */
mlmReassocCnf.sessionId = psessionEntry->peSessionId;
switch (psessionEntry->limSmeState) {
case eLIM_SME_WT_REASSOC_STATE:
{
tpSirAssocRsp assocRsp;
tpDphHashNode pStaDs;
tSirRetStatus retStatus = eSIR_SUCCESS;
tpSchBeaconStruct beacon_struct;
beacon_struct = qdf_mem_malloc(sizeof(tSchBeaconStruct));
if (NULL == beacon_struct) {
lim_log(pMac, LOGE, FL("beaconStruct alloc failed"));
mlmReassocCnf.resultCode =
eSIR_SME_RESOURCES_UNAVAILABLE;
mlmReassocCnf.protStatusCode =
eSIR_MAC_UNSPEC_FAILURE_STATUS;
lim_delete_dph_hash_entry(pMac, psessionEntry->bssId,
DPH_STA_HASH_INDEX_PEER, psessionEntry);
goto error;
}
/* Delete the older STA Table entry */
lim_delete_dph_hash_entry(pMac, psessionEntry->bssId,
DPH_STA_HASH_INDEX_PEER, psessionEntry);
/*
* Add an entry for AP to hash table
* maintained by DPH module
*/
pStaDs = dph_add_hash_entry(pMac,
psessionEntry->limReAssocbssId,
DPH_STA_HASH_INDEX_PEER,
&psessionEntry->dph.dphHashTable);
if (pStaDs == NULL) {
/* Could not add hash table entry */
lim_log(pMac, LOGE,
FL("could not add hash entry at DPH for "));
lim_print_mac_addr(pMac,
psessionEntry->limReAssocbssId, LOGE);
mlmReassocCnf.resultCode =
eSIR_SME_RESOURCES_UNAVAILABLE;
mlmReassocCnf.protStatusCode = eSIR_SME_SUCCESS;
qdf_mem_free(beacon_struct);
goto error;
}
/*
* While Processing the ReAssoc Response Frame the ReAssocRsp Frame
* is being stored to be used here for sending ADDBSS
*/
assocRsp =
(tpSirAssocRsp) psessionEntry->limAssocResponseData;
lim_update_assoc_sta_datas(pMac, pStaDs, assocRsp,
psessionEntry);
lim_update_re_assoc_globals(pMac, assocRsp, psessionEntry);
lim_extract_ap_capabilities(pMac,
(uint8_t *) psessionEntry->pLimReAssocReq->bssDescription.ieFields,
lim_get_ielen_from_bss_description(
&psessionEntry->pLimReAssocReq->bssDescription),
beacon_struct);
if (pMac->lim.gLimProtectionControl !=
WNI_CFG_FORCE_POLICY_PROTECTION_DISABLE)
lim_decide_sta_protection_on_assoc(pMac,
beacon_struct,
psessionEntry);
if (beacon_struct->erpPresent) {
if (beacon_struct->erpIEInfo.barkerPreambleMode)
psessionEntry->beaconParams.fShortPreamble = 0;
else
psessionEntry->beaconParams.fShortPreamble = 1;
}
/*
* updateBss flag is false, as in this case, PE is first
* deleting the existing BSS and then adding a new one
*/
if (eSIR_SUCCESS !=
lim_sta_send_add_bss(pMac, assocRsp, beacon_struct,
&psessionEntry->pLimReAssocReq->bssDescription,
false, psessionEntry)) {
lim_log(pMac, LOGE,
FL("Posting ADDBSS in the ReAssocCtx has Failed "));
retStatus = eSIR_FAILURE;
}
if (retStatus != eSIR_SUCCESS) {
mlmReassocCnf.resultCode =
eSIR_SME_RESOURCES_UNAVAILABLE;
mlmReassocCnf.protStatusCode =
eSIR_MAC_UNSPEC_FAILURE_STATUS;
qdf_mem_free(assocRsp);
pMac->lim.gLimAssocResponseData = NULL;
qdf_mem_free(beacon_struct);
goto error;
}
qdf_mem_free(assocRsp);
qdf_mem_free(beacon_struct);
psessionEntry->limAssocResponseData = NULL;
}
break;
case eLIM_SME_WT_REASSOC_LINK_FAIL_STATE:
{
/** Case wherein the DisAssoc / Deauth
* being sent as response to ReAssoc Req*/
/** Send the Reason code as the same received in Disassoc / Deauth Frame*/
mlmReassocCnf.resultCode =
pStaDs->mlmStaContext.disassocReason;
mlmReassocCnf.protStatusCode =
pStaDs->mlmStaContext.cleanupTrigger;
/** Set the SME State back to WT_Reassoc State*/
psessionEntry->limSmeState = eLIM_SME_WT_REASSOC_STATE;
lim_delete_dph_hash_entry(pMac, pStaDs->staAddr,
pStaDs->assocId, psessionEntry);
if (LIM_IS_STA_ROLE(psessionEntry) ||
LIM_IS_BT_AMP_STA_ROLE(psessionEntry)) {
psessionEntry->limMlmState =
eLIM_MLM_IDLE_STATE;
}
lim_post_sme_message(pMac, LIM_MLM_REASSOC_CNF,
(uint32_t *) &mlmReassocCnf);
}
break;
default:
lim_log(pMac, LOGE,
FL("DelBss is being invoked in the wrong system Role /unhandled SME State"));
mlmReassocCnf.resultCode = eSIR_SME_REFUSED;
mlmReassocCnf.protStatusCode =
eSIR_SME_UNEXPECTED_REQ_RESULT_CODE;
goto error;
}
return;
error:
lim_post_sme_message(pMac, LIM_MLM_REASSOC_CNF,
(uint32_t *) &mlmReassocCnf);
}
/* Added For BT -AMP Support */
static void
lim_process_btamp_add_bss_rsp(tpAniSirGlobal pMac, tpSirMsgQ limMsgQ,
@@ -3485,169 +3324,6 @@ end:
}
}
/**
* @function : lim_handle_add_bss_in_re_assoc_context
* @brief : While Processing the ReAssociation Response Frame in STA,
* a. immediately after receiving the Reassoc Response the RxCleanUp is
* being issued and the end of DelBSS the new BSS is being added.
*
* b .If an AP rejects the ReAssociation (Disassoc / Deauth) with some context
* change, We need to update CSR with ReAssocCNF Response with the
* ReAssoc Fail and the reason Code, that is also being handled in the DELBSS
* context only
*
* @param : pMac - tpAniSirGlobal
* pStaDs - Station Descriptor
*
* @return : none
*/
void
lim_handle_add_bss_in_re_assoc_context(tpAniSirGlobal pMac, tpDphHashNode pStaDs,
tpPESession psessionEntry)
{
tLimMlmReassocCnf mlmReassocCnf;
/** Skipped the DeleteDPH Hash Entry as we need it for the new BSS*/
/** Set the MlmState to IDLE*/
psessionEntry->limMlmState = eLIM_MLM_IDLE_STATE;
MTRACE(mac_trace
(pMac, TRACE_CODE_MLM_STATE, psessionEntry->peSessionId,
psessionEntry->limMlmState));
switch (psessionEntry->limSmeState) {
case eLIM_SME_WT_REASSOC_STATE: {
tpSirAssocRsp assocRsp;
tpDphHashNode pStaDs;
tSirRetStatus retStatus = eSIR_SUCCESS;
tSchBeaconStruct *pBeaconStruct;
pBeaconStruct =
qdf_mem_malloc(sizeof(tSchBeaconStruct));
if (NULL == pBeaconStruct) {
lim_log(pMac, LOGE,
FL
("Unable to allocate memory in lim_handle_add_bss_in_re_assoc_context"));
mlmReassocCnf.resultCode =
eSIR_SME_RESOURCES_UNAVAILABLE;
mlmReassocCnf.protStatusCode =
eSIR_SME_RESOURCES_UNAVAILABLE;
goto Error;
}
/* Get the AP entry from DPH hash table */
pStaDs =
dph_get_hash_entry(pMac, DPH_STA_HASH_INDEX_PEER,
&psessionEntry->dph.dphHashTable);
if (pStaDs == NULL) {
PELOGE(lim_log
(pMac, LOGE,
FL
("Fail to get STA PEER entry from hash"));
)
mlmReassocCnf.resultCode =
eSIR_SME_RESOURCES_UNAVAILABLE;
mlmReassocCnf.protStatusCode = eSIR_SME_SUCCESS;
qdf_mem_free(pBeaconStruct);
goto Error;
}
/** While Processing the ReAssoc Response Frame the ReAssocRsp Frame
* is being stored to be used here for sending ADDBSS
*/
assocRsp =
(tpSirAssocRsp) psessionEntry->limAssocResponseData;
lim_update_assoc_sta_datas(pMac, pStaDs, assocRsp,
psessionEntry);
lim_update_re_assoc_globals(pMac, assocRsp, psessionEntry);
lim_extract_ap_capabilities(pMac,
(uint8_t *) psessionEntry->
pLimReAssocReq->bssDescription.
ieFields,
lim_get_ielen_from_bss_description
(&psessionEntry->
pLimReAssocReq->
bssDescription),
pBeaconStruct);
if (pMac->lim.gLimProtectionControl !=
WNI_CFG_FORCE_POLICY_PROTECTION_DISABLE)
lim_decide_sta_protection_on_assoc(pMac,
pBeaconStruct,
psessionEntry);
if (pBeaconStruct->erpPresent) {
if (pBeaconStruct->erpIEInfo.barkerPreambleMode)
psessionEntry->beaconParams.
fShortPreamble = 0;
else
psessionEntry->beaconParams.
fShortPreamble = 1;
}
psessionEntry->isNonRoamReassoc = 1;
if (eSIR_SUCCESS !=
lim_sta_send_add_bss(pMac, assocRsp, pBeaconStruct,
&psessionEntry->pLimReAssocReq->
bssDescription, true,
psessionEntry)) {
lim_log(pMac, LOGE,
FL
("Posting ADDBSS in the ReAssocContext has Failed "));
retStatus = eSIR_FAILURE;
}
if (retStatus != eSIR_SUCCESS) {
mlmReassocCnf.resultCode =
eSIR_SME_RESOURCES_UNAVAILABLE;
mlmReassocCnf.protStatusCode =
eSIR_MAC_UNSPEC_FAILURE_STATUS;
qdf_mem_free(assocRsp);
pMac->lim.gLimAssocResponseData = NULL;
qdf_mem_free(pBeaconStruct);
goto Error;
}
qdf_mem_free(assocRsp);
psessionEntry->limAssocResponseData = NULL;
qdf_mem_free(pBeaconStruct);
}
break;
case eLIM_SME_WT_REASSOC_LINK_FAIL_STATE: {
/* Case wherein the DisAssoc / Deauth
* being sent as response to ReAssoc Req
* Send the Reason code as the same received
* in Disassoc / Deauth Frame
*/
mlmReassocCnf.resultCode =
pStaDs->mlmStaContext.disassocReason;
mlmReassocCnf.protStatusCode =
pStaDs->mlmStaContext.cleanupTrigger;
/** Set the SME State back to WT_Reassoc State*/
psessionEntry->limSmeState = eLIM_SME_WT_REASSOC_STATE;
lim_delete_dph_hash_entry(pMac, pStaDs->staAddr,
pStaDs->assocId, psessionEntry);
if (LIM_IS_STA_ROLE(psessionEntry)) {
psessionEntry->limMlmState =
eLIM_MLM_IDLE_STATE;
MTRACE(mac_trace
(pMac, TRACE_CODE_MLM_STATE,
psessionEntry->peSessionId,
psessionEntry->limMlmState));
}
lim_post_sme_message(pMac, LIM_MLM_REASSOC_CNF,
(uint32_t *) &mlmReassocCnf);
}
break;
default:
PELOGE(lim_log
(pMac, LOGE,
FL
("DelBss is being invoked in the wrong system Role /unhandled SME State"));
)
mlmReassocCnf.resultCode = eSIR_SME_REFUSED;
mlmReassocCnf.protStatusCode =
eSIR_SME_UNEXPECTED_REQ_RESULT_CODE;
goto Error;
}
return;
Error:
lim_post_sme_message(pMac, LIM_MLM_REASSOC_CNF,
(uint32_t *) &mlmReassocCnf);
}
void lim_send_beacon_ind(tpAniSirGlobal pMac, tpPESession psessionEntry)
{
tBeaconGenParams *pBeaconGenParams = NULL;

561
core/mac/src/pe/lim/lim_reassoc_utils.c 普通文件
查看文件

@@ -0,0 +1,561 @@
/*
* Copyright (c) 2016 The Linux Foundation. All rights reserved.
*
* Previously licensed under the ISC license by Qualcomm Atheros, Inc.
*
* Permission to use, copy, modify, and/or distribute this software for
* any purpose with or without fee is hereby granted, provided that the
* above copyright notice and this permission notice appear in all
* copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
* AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
/**
* DOC: lim_reassoc_utils.c
*
* Host based roaming re-association utilities
*/
#include "cds_api.h"
#include "ani_global.h"
#include "wni_api.h"
#include "sir_common.h"
#include "wni_cfg.h"
#include "cfg_api.h"
#include "sch_api.h"
#include "utils_api.h"
#include "lim_utils.h"
#include "lim_assoc_utils.h"
#include "lim_security_utils.h"
#include "lim_ser_des_utils.h"
#include "lim_sta_hash_api.h"
#include "lim_admit_control.h"
#include "lim_send_messages.h"
#include "lim_ibss_peer_mgmt.h"
#include "lim_ft_defs.h"
#include "lim_session.h"
#include "qdf_types.h"
#include "wma_types.h"
#include "lim_types.h"
/**
* lim_update_re_assoc_globals() - Update reassoc global data
* @pMac: Global MAC context
* @pAssocRsp: Reassociation response data
* @psessionEntry: PE Session
*
* This function is called to Update the Globals (LIM) during ReAssoc.
*
* Return: None
*/
void lim_update_re_assoc_globals(tpAniSirGlobal pMac, tpSirAssocRsp pAssocRsp,
tpPESession psessionEntry)
{
/* Update the current Bss Information */
qdf_mem_copy(psessionEntry->bssId,
psessionEntry->limReAssocbssId, sizeof(tSirMacAddr));
psessionEntry->currentOperChannel = psessionEntry->limReassocChannelId;
psessionEntry->htSecondaryChannelOffset =
psessionEntry->reAssocHtSupportedChannelWidthSet;
psessionEntry->htRecommendedTxWidthSet =
psessionEntry->reAssocHtRecommendedTxWidthSet;
psessionEntry->htSecondaryChannelOffset =
psessionEntry->reAssocHtSecondaryChannelOffset;
psessionEntry->limCurrentBssCaps = psessionEntry->limReassocBssCaps;
psessionEntry->limCurrentBssQosCaps =
psessionEntry->limReassocBssQosCaps;
psessionEntry->limCurrentBssPropCap =
psessionEntry->limReassocBssPropCap;
qdf_mem_copy((uint8_t *) &psessionEntry->ssId,
(uint8_t *) &psessionEntry->limReassocSSID,
psessionEntry->limReassocSSID.length + 1);
/* Store assigned AID for TIM processing */
psessionEntry->limAID = pAssocRsp->aid & 0x3FFF;
/** Set the State Back to ReAssoc Rsp*/
psessionEntry->limMlmState = eLIM_MLM_WT_REASSOC_RSP_STATE;
MTRACE(mac_trace
(pMac, TRACE_CODE_MLM_STATE, psessionEntry->peSessionId,
psessionEntry->limMlmState));
}
/**
* @lim_handle_del_bss_in_re_assoc_context() - DEL BSS during reassociation
* @pMac: Global MAC Context
* @pStaDs: Station Hash entry
* @psessionEntry: PE Session
*
* While Processing the ReAssociation Response Frame in STA,
* a.immediately after receiving the Reassoc Response the RxCleanUp is
* being issued and the end of DelBSS the new BSS is being added.
*
* b. If an AP rejects the ReAssociation (Disassoc/Deauth) with some context
* change, We need to update CSR with ReAssocCNF Response with the
* ReAssoc Fail and the reason Code, that is also being handled in the
* DELBSS context only
*
* Return: None
*/
void lim_handle_del_bss_in_re_assoc_context(tpAniSirGlobal pMac,
tpDphHashNode pStaDs, tpPESession psessionEntry)
{
tLimMlmReassocCnf mlmReassocCnf;
tpSirBssDescription bss_desc;
/*
* Skipped the DeleteDPH Hash Entry as we need it for the new BSS
* Set the MlmState to IDLE
*/
psessionEntry->limMlmState = eLIM_MLM_IDLE_STATE;
/* Update PE session Id */
mlmReassocCnf.sessionId = psessionEntry->peSessionId;
switch (psessionEntry->limSmeState) {
case eLIM_SME_WT_REASSOC_STATE:
{
tpSirAssocRsp assocRsp;
tpDphHashNode pStaDs;
tSirRetStatus retStatus = eSIR_SUCCESS;
tpSchBeaconStruct beacon_struct;
beacon_struct = qdf_mem_malloc(sizeof(tSchBeaconStruct));
if (NULL == beacon_struct) {
lim_log(pMac, LOGE, FL("beaconStruct alloc failed"));
mlmReassocCnf.resultCode =
eSIR_SME_RESOURCES_UNAVAILABLE;
mlmReassocCnf.protStatusCode =
eSIR_MAC_UNSPEC_FAILURE_STATUS;
lim_delete_dph_hash_entry(pMac, psessionEntry->bssId,
DPH_STA_HASH_INDEX_PEER, psessionEntry);
goto error;
}
/* Delete the older STA Table entry */
lim_delete_dph_hash_entry(pMac, psessionEntry->bssId,
DPH_STA_HASH_INDEX_PEER, psessionEntry);
/*
* Add an entry for AP to hash table
* maintained by DPH module
*/
pStaDs = dph_add_hash_entry(pMac,
psessionEntry->limReAssocbssId,
DPH_STA_HASH_INDEX_PEER,
&psessionEntry->dph.dphHashTable);
if (pStaDs == NULL) {
/* Could not add hash table entry */
lim_log(pMac, LOGE,
FL("could not add hash entry at DPH for "));
lim_print_mac_addr(pMac,
psessionEntry->limReAssocbssId, LOGE);
mlmReassocCnf.resultCode =
eSIR_SME_RESOURCES_UNAVAILABLE;
mlmReassocCnf.protStatusCode = eSIR_SME_SUCCESS;
qdf_mem_free(beacon_struct);
goto error;
}
/*
* While Processing the ReAssoc Response Frame the Rsp Frame
* is being stored to be used here for sending ADDBSS
*/
assocRsp =
(tpSirAssocRsp) psessionEntry->limAssocResponseData;
lim_update_assoc_sta_datas(pMac, pStaDs, assocRsp,
psessionEntry);
lim_update_re_assoc_globals(pMac, assocRsp, psessionEntry);
bss_desc = &psessionEntry->pLimReAssocReq->bssDescription;
lim_extract_ap_capabilities(pMac,
(uint8_t *) bss_desc->ieFields,
lim_get_ielen_from_bss_description(bss_desc),
beacon_struct);
if (pMac->lim.gLimProtectionControl !=
WNI_CFG_FORCE_POLICY_PROTECTION_DISABLE)
lim_decide_sta_protection_on_assoc(pMac,
beacon_struct,
psessionEntry);
if (beacon_struct->erpPresent) {
if (beacon_struct->erpIEInfo.barkerPreambleMode)
psessionEntry->beaconParams.fShortPreamble = 0;
else
psessionEntry->beaconParams.fShortPreamble = 1;
}
/*
* updateBss flag is false, as in this case, PE is first
* deleting the existing BSS and then adding a new one
*/
if (eSIR_SUCCESS !=
lim_sta_send_add_bss(pMac, assocRsp, beacon_struct,
bss_desc,
false, psessionEntry)) {
lim_log(pMac, LOGE,
FL("Posting ADDBSS in the ReAssocCtx Failed "));
retStatus = eSIR_FAILURE;
}
if (retStatus != eSIR_SUCCESS) {
mlmReassocCnf.resultCode =
eSIR_SME_RESOURCES_UNAVAILABLE;
mlmReassocCnf.protStatusCode =
eSIR_MAC_UNSPEC_FAILURE_STATUS;
qdf_mem_free(assocRsp);
pMac->lim.gLimAssocResponseData = NULL;
qdf_mem_free(beacon_struct);
goto error;
}
qdf_mem_free(assocRsp);
qdf_mem_free(beacon_struct);
psessionEntry->limAssocResponseData = NULL;
}
break;
case eLIM_SME_WT_REASSOC_LINK_FAIL_STATE:
{
mlmReassocCnf.resultCode =
pStaDs->mlmStaContext.disassocReason;
mlmReassocCnf.protStatusCode =
pStaDs->mlmStaContext.cleanupTrigger;
/** Set the SME State back to WT_Reassoc State*/
psessionEntry->limSmeState = eLIM_SME_WT_REASSOC_STATE;
lim_delete_dph_hash_entry(pMac, pStaDs->staAddr,
pStaDs->assocId, psessionEntry);
if (LIM_IS_STA_ROLE(psessionEntry) ||
LIM_IS_BT_AMP_STA_ROLE(psessionEntry)) {
psessionEntry->limMlmState =
eLIM_MLM_IDLE_STATE;
}
lim_post_sme_message(pMac, LIM_MLM_REASSOC_CNF,
(uint32_t *) &mlmReassocCnf);
}
break;
default:
lim_log(pMac, LOGE,
FL("DelBss in wrong system Role and SME State"));
mlmReassocCnf.resultCode = eSIR_SME_REFUSED;
mlmReassocCnf.protStatusCode =
eSIR_SME_UNEXPECTED_REQ_RESULT_CODE;
goto error;
}
return;
error:
lim_post_sme_message(pMac, LIM_MLM_REASSOC_CNF,
(uint32_t *) &mlmReassocCnf);
}
/**
* @lim_handle_add_bss_in_re_assoc_context() - ADD BSS during reassociation
* @pMac: Global MAC Context
* @pStaDs: Station Hash entry
* @psessionEntry: PE Session
*
* While Processing the ReAssociation Response Frame in STA,
* a. immediately after receiving the Reassoc Response the RxCleanUp is
* being issued and the end of DelBSS the new BSS is being added.
*
* b. If an AP rejects the ReAssociation (Disassoc/Deauth) with some context
* change, We need to update CSR with ReAssocCNF Response with the
* ReAssoc Fail and the reason Code, that is also being handled in the
* DELBSS context only
*
* Return: None
*/
void lim_handle_add_bss_in_re_assoc_context(tpAniSirGlobal pMac,
tpDphHashNode pStaDs, tpPESession psessionEntry)
{
tLimMlmReassocCnf mlmReassocCnf;
/** Skipped the DeleteDPH Hash Entry as we need it for the new BSS*/
/** Set the MlmState to IDLE*/
psessionEntry->limMlmState = eLIM_MLM_IDLE_STATE;
MTRACE(mac_trace
(pMac, TRACE_CODE_MLM_STATE, psessionEntry->peSessionId,
psessionEntry->limMlmState));
switch (psessionEntry->limSmeState) {
case eLIM_SME_WT_REASSOC_STATE: {
tpSirAssocRsp assocRsp;
tpDphHashNode pStaDs;
tSirRetStatus retStatus = eSIR_SUCCESS;
tSchBeaconStruct *pBeaconStruct;
pBeaconStruct =
qdf_mem_malloc(sizeof(tSchBeaconStruct));
if (NULL == pBeaconStruct) {
lim_log(pMac, LOGE, FL("Unable to allocate memory"));
mlmReassocCnf.resultCode =
eSIR_SME_RESOURCES_UNAVAILABLE;
mlmReassocCnf.protStatusCode =
eSIR_SME_RESOURCES_UNAVAILABLE;
goto Error;
}
/* Get the AP entry from DPH hash table */
pStaDs =
dph_get_hash_entry(pMac, DPH_STA_HASH_INDEX_PEER,
&psessionEntry->dph.dphHashTable);
if (pStaDs == NULL) {
lim_log(pMac, LOGE,
FL("Fail to get STA PEER entry from hash"));
mlmReassocCnf.resultCode =
eSIR_SME_RESOURCES_UNAVAILABLE;
mlmReassocCnf.protStatusCode = eSIR_SME_SUCCESS;
qdf_mem_free(pBeaconStruct);
goto Error;
}
/*
* While Processing the ReAssoc Response Frame the Rsp Frame
* is being stored to be used here for sending ADDBSS
*/
assocRsp =
(tpSirAssocRsp) psessionEntry->limAssocResponseData;
lim_update_assoc_sta_datas(pMac, pStaDs, assocRsp,
psessionEntry);
lim_update_re_assoc_globals(pMac, assocRsp, psessionEntry);
lim_extract_ap_capabilities(pMac,
(uint8_t *) psessionEntry->
pLimReAssocReq->bssDescription.
ieFields,
lim_get_ielen_from_bss_description
(&psessionEntry->
pLimReAssocReq->
bssDescription),
pBeaconStruct);
if (pMac->lim.gLimProtectionControl !=
WNI_CFG_FORCE_POLICY_PROTECTION_DISABLE)
lim_decide_sta_protection_on_assoc(pMac,
pBeaconStruct,
psessionEntry);
if (pBeaconStruct->erpPresent) {
if (pBeaconStruct->erpIEInfo.barkerPreambleMode)
psessionEntry->beaconParams.
fShortPreamble = 0;
else
psessionEntry->beaconParams.
fShortPreamble = 1;
}
psessionEntry->isNonRoamReassoc = 1;
if (eSIR_SUCCESS !=
lim_sta_send_add_bss(pMac, assocRsp, pBeaconStruct,
&psessionEntry->pLimReAssocReq->
bssDescription, true,
psessionEntry)) {
lim_log(pMac, LOGE,
FL("Post ADDBSS in the ReAssocCtxt Failed "));
retStatus = eSIR_FAILURE;
}
if (retStatus != eSIR_SUCCESS) {
mlmReassocCnf.resultCode =
eSIR_SME_RESOURCES_UNAVAILABLE;
mlmReassocCnf.protStatusCode =
eSIR_MAC_UNSPEC_FAILURE_STATUS;
qdf_mem_free(assocRsp);
pMac->lim.gLimAssocResponseData = NULL;
qdf_mem_free(pBeaconStruct);
goto Error;
}
qdf_mem_free(assocRsp);
psessionEntry->limAssocResponseData = NULL;
qdf_mem_free(pBeaconStruct);
}
break;
case eLIM_SME_WT_REASSOC_LINK_FAIL_STATE: {
/* Case wherein the DisAssoc / Deauth
* being sent as response to ReAssoc Req
* Send the Reason code as the same received
* in Disassoc / Deauth Frame
*/
mlmReassocCnf.resultCode =
pStaDs->mlmStaContext.disassocReason;
mlmReassocCnf.protStatusCode =
pStaDs->mlmStaContext.cleanupTrigger;
/** Set the SME State back to WT_Reassoc State*/
psessionEntry->limSmeState = eLIM_SME_WT_REASSOC_STATE;
lim_delete_dph_hash_entry(pMac, pStaDs->staAddr,
pStaDs->assocId, psessionEntry);
if (LIM_IS_STA_ROLE(psessionEntry)) {
psessionEntry->limMlmState =
eLIM_MLM_IDLE_STATE;
MTRACE(mac_trace
(pMac, TRACE_CODE_MLM_STATE,
psessionEntry->peSessionId,
psessionEntry->limMlmState));
}
lim_post_sme_message(pMac, LIM_MLM_REASSOC_CNF,
(uint32_t *) &mlmReassocCnf);
}
break;
default:
lim_log(pMac, LOGE,
FL("DelBss in the wrong system Role and SME State"));
mlmReassocCnf.resultCode = eSIR_SME_REFUSED;
mlmReassocCnf.protStatusCode =
eSIR_SME_UNEXPECTED_REQ_RESULT_CODE;
goto Error;
}
return;
Error:
lim_post_sme_message(pMac, LIM_MLM_REASSOC_CNF,
(uint32_t *) &mlmReassocCnf);
}
/**
* lim_is_reassoc_in_progress() - Check if reassoiciation is in progress
* @pMac: Global MAC Context
* @psessionEntry: PE Session
*
* Return: true When STA is waiting for Reassoc response from AP
* else false
*/
bool lim_is_reassoc_in_progress(tpAniSirGlobal pMac, tpPESession psessionEntry)
{
if (psessionEntry == NULL)
return false;
if ((LIM_IS_STA_ROLE(psessionEntry) ||
LIM_IS_BT_AMP_STA_ROLE(psessionEntry)) &&
((psessionEntry->limSmeState == eLIM_SME_WT_REASSOC_STATE) ||
(psessionEntry->limSmeState ==
eLIM_SME_WT_REASSOC_LINK_FAIL_STATE)))
return true;
return false;
}
/**
* lim_add_ft_sta_self()- function to add STA once we have connected with a
* new AP
* @mac_ctx: pointer to global mac structure
* @assoc_id: association id for the station connection
* @session_entry: pe session entr
*
* This function is called to add a STA once we have connected with a new
* AP, that we have performed an FT to.
*
* The Add STA Response is created and now after the ADD Bss Is Successful
* we add the self sta. We update with the association id from the reassoc
* response from the AP.
*
* Return: eSIR_SUCCESS on success else eSirRetStatus failure codes
*/
tSirRetStatus lim_add_ft_sta_self(tpAniSirGlobal mac_ctx, uint16_t assoc_id,
tpPESession session_entry)
{
tpAddStaParams add_sta_params = NULL;
tSirRetStatus ret_code = eSIR_SUCCESS;
tSirMsgQ msg_q;
add_sta_params = session_entry->ftPEContext.pAddStaReq;
add_sta_params->assocId = assoc_id;
add_sta_params->smesessionId = session_entry->smeSessionId;
msg_q.type = WMA_ADD_STA_REQ;
msg_q.reserved = 0;
msg_q.bodyptr = add_sta_params;
msg_q.bodyval = 0;
QDF_TRACE(QDF_MODULE_ID_PE, QDF_TRACE_LEVEL_DEBUG,
"Sending WMA_ADD_STA_REQ (aid %d)",
add_sta_params->assocId);
MTRACE(mac_trace_msg_tx(mac_ctx, session_entry->peSessionId,
msg_q.type));
session_entry->limPrevMlmState = session_entry->limMlmState;
MTRACE(mac_trace(mac_ctx, TRACE_CODE_MLM_STATE,
session_entry->peSessionId, eLIM_MLM_WT_ADD_STA_RSP_STATE));
session_entry->limMlmState = eLIM_MLM_WT_ADD_STA_RSP_STATE;
ret_code = wma_post_ctrl_msg(mac_ctx, &msg_q);
if (eSIR_SUCCESS != ret_code) {
lim_log(mac_ctx, LOGE,
FL("Posting WMA_ADD_STA_REQ to HAL failed, reason=%X"),
ret_code);
qdf_mem_free(add_sta_params);
}
session_entry->ftPEContext.pAddStaReq = NULL;
return ret_code;
}
/**
* lim_restore_pre_reassoc_state() - Restore the pre-association context
* @pMac: Global MAC Context
* @resultCode: Assoc response result
* @protStatusCode: Internal protocol status code
* @psessionEntry: PE Session
*
* This function is called on STA role whenever Reasociation
* Response with a reject code is received from AP.
* Reassociation failure timer is stopped, Old (or current) AP's
* context is restored both at Polaris & software
*
* Return: None
*/
void
lim_restore_pre_reassoc_state(tpAniSirGlobal pMac,
tSirResultCodes resultCode, uint16_t protStatusCode,
tpPESession psessionEntry)
{
tLimMlmReassocCnf mlmReassocCnf;
lim_log(pMac, LOG1,
FL("sessionid: %d protStatusCode: %d resultCode: %d"),
psessionEntry->smeSessionId, protStatusCode, resultCode);
psessionEntry->limMlmState = eLIM_MLM_LINK_ESTABLISHED_STATE;
MTRACE(mac_trace
(pMac, TRACE_CODE_MLM_STATE, psessionEntry->peSessionId,
eLIM_MLM_LINK_ESTABLISHED_STATE));
/* 'Change' timer for future activations */
lim_deactivate_and_change_timer(pMac, eLIM_REASSOC_FAIL_TIMER);
lim_set_channel(pMac, psessionEntry->currentOperChannel,
psessionEntry->ch_center_freq_seg0,
psessionEntry->ch_center_freq_seg1,
psessionEntry->ch_width,
psessionEntry->maxTxPower,
psessionEntry->peSessionId);
/* @ToDo:Need to Integrate the STOP the Dataxfer to AP from 11H code */
mlmReassocCnf.resultCode = resultCode;
mlmReassocCnf.protStatusCode = protStatusCode;
mlmReassocCnf.sessionId = psessionEntry->peSessionId;
lim_post_sme_message(pMac,
LIM_MLM_REASSOC_CNF, (uint32_t *) &mlmReassocCnf);
}
/**
* lim_post_reassoc_failure() - Post failure message to SME
* @pMac: Global MAC Context
* @resultCode: Result Code
* @protStatusCode: Protocol Status Code
* @psessionEntry: PE Session
*
* Return: None
*/
void lim_post_reassoc_failure(tpAniSirGlobal pMac,
tSirResultCodes resultCode, uint16_t protStatusCode,
tpPESession psessionEntry)
{
tLimMlmReassocCnf mlmReassocCnf;
psessionEntry->limMlmState = eLIM_MLM_LINK_ESTABLISHED_STATE;
MTRACE(mac_trace
(pMac, TRACE_CODE_MLM_STATE, psessionEntry->peSessionId,
eLIM_MLM_LINK_ESTABLISHED_STATE));
lim_deactivate_and_change_timer(pMac, eLIM_REASSOC_FAIL_TIMER);
mlmReassocCnf.resultCode = resultCode;
mlmReassocCnf.protStatusCode = protStatusCode;
mlmReassocCnf.sessionId = psessionEntry->peSessionId;
lim_post_sme_message(pMac,
LIM_MLM_REASSOC_CNF, (uint32_t *) &mlmReassocCnf);
}