?? connect.c
字號:
IterateOnBssTab(pAd);
}
}
}
/*
==========================================================================
Description:
==========================================================================
*/
VOID CntlOidRTBssidProc(
IN PRTMP_ADAPTER pAd,
IN MLME_QUEUE_ELEM * Elem)
{
ULONG BssIdx;
PUCHAR pOidBssid = (PUCHAR)Elem->Msg;
MLME_DISASSOC_REQ_STRUCT DisassocReq;
MLME_JOIN_REQ_STRUCT JoinReq;
DBGPRINT(RT_DEBUG_TRACE, "CNTL - CntlOidRTBssidProc ...\n");
// record user desired settings
COPY_MAC_ADDR(pAd->MlmeAux.Bssid, pOidBssid);
pAd->MlmeAux.BssType = pAd->PortCfg.BssType;
// find the desired BSS in the latest SCAN result table
BssIdx = BssTableSearch(&pAd->ScanTab, pOidBssid, pAd->MlmeAux.Channel);
if (BssIdx == BSS_NOT_FOUND)
{
DBGPRINT(RT_DEBUG_TRACE, "CNTL - BSSID not found. reply NDIS_STATUS_NOT_ACCEPTED\n");
pAd->Mlme.CntlMachine.CurrState = CNTL_IDLE;
return;
}
// copy the matched BSS entry from ScanTab to MlmeAux.SsidBssTab. Why?
// Because we need this entry to become the JOIN target in later on SYNC state machine
pAd->MlmeAux.BssIdx = 0;
pAd->MlmeAux.SsidBssTab.BssNr = 1;
NdisMoveMemory(&pAd->MlmeAux.SsidBssTab.BssEntry[0], &pAd->ScanTab.BssEntry[BssIdx], sizeof(BSS_ENTRY));
//
// Update Reconnect Ssid, that user desired to connect.
//
pAd->MlmeAux.AutoReconnectSsidLen = pAd->ScanTab.BssEntry[BssIdx].SsidLen;
NdisMoveMemory(pAd->MlmeAux.AutoReconnectSsid, pAd->ScanTab.BssEntry[BssIdx].Ssid, pAd->ScanTab.BssEntry[BssIdx].SsidLen);
// Add SSID into MlmeAux for site surey joining hidden SSID
pAd->MlmeAux.SsidLen = pAd->ScanTab.BssEntry[BssIdx].SsidLen;
NdisMoveMemory(pAd->MlmeAux.Ssid, pAd->ScanTab.BssEntry[BssIdx].Ssid, pAd->MlmeAux.SsidLen);
// 2002-11-26 skip the following checking. i.e. if user wants to re-connect to same AP
// we just follow normal procedure. The reason of user doing this may because he/she changed
// AP to another channel, but we still received BEACON from it thus don't claim Link Down.
// Since user knows he's changed AP channel, he'll re-connect again. By skipping the following
// checking, we'll disassociate then re-do normal association with this AP at the new channel.
// 2003-1-6 Re-enable this feature based on microsoft requirement which prefer not to re-do
// connection when setting the same BSSID.
if (OPSTATUS_TEST_FLAG(pAd, fOP_STATUS_MEDIA_STATE_CONNECTED) &&
MAC_ADDR_EQUAL(pAd->PortCfg.Bssid, pOidBssid))
{
// already connected to the same BSSID, go back to idle state directly
DBGPRINT(RT_DEBUG_TRACE, "CNTL - already in this BSSID. ignore this SET_BSSID request\n");
pAd->Mlme.CntlMachine.CurrState = CNTL_IDLE;
}
else
{
if (INFRA_ON(pAd))
{
// disassoc from current AP first
DBGPRINT(RT_DEBUG_TRACE, "CNTL - disassociate with current AP ...\n");
DisassocParmFill(pAd, &DisassocReq, pAd->PortCfg.Bssid, REASON_DISASSOC_STA_LEAVING);
MlmeEnqueue(pAd, ASSOC_STATE_MACHINE, MT2_MLME_DISASSOC_REQ,
sizeof(MLME_DISASSOC_REQ_STRUCT), &DisassocReq);
pAd->Mlme.CntlMachine.CurrState = CNTL_WAIT_DISASSOC;
}
else
{
if (ADHOC_ON(pAd))
{
DBGPRINT(RT_DEBUG_TRACE, "CNTL - drop current ADHOC\n");
LinkDown(pAd, FALSE);
OPSTATUS_CLEAR_FLAG(pAd, fOP_STATUS_MEDIA_STATE_CONNECTED);
DBGPRINT(RT_DEBUG_TRACE, "NDIS_STATUS_MEDIA_DISCONNECT Event C!\n");
}
#if 0 // set OrigWepStatus in OID_802_11_WEP_STATUS
// Change the wepstatus to original wepstatus
pAd->PortCfg.WepStatus = pAd->PortCfg.OrigWepStatus;
pAd->PortCfg.PairCipher = pAd->PortCfg.OrigWepStatus;
pAd->PortCfg.GroupCipher = pAd->PortCfg.OrigWepStatus;
#endif
// Check cipher suite, AP must have more secured cipher than station setting
// Set the Pairwise and Group cipher to match the intended AP setting
// We can only connect to AP with less secured cipher setting
if ((pAd->PortCfg.AuthMode == Ndis802_11AuthModeWPA) || (pAd->PortCfg.AuthMode == Ndis802_11AuthModeWPAPSK))
{
pAd->PortCfg.GroupCipher = pAd->ScanTab.BssEntry[BssIdx].WPA.GroupCipher;
if (pAd->PortCfg.WepStatus == pAd->ScanTab.BssEntry[BssIdx].WPA.PairCipher)
pAd->PortCfg.PairCipher = pAd->ScanTab.BssEntry[BssIdx].WPA.PairCipher;
else if (pAd->ScanTab.BssEntry[BssIdx].WPA.PairCipherAux != Ndis802_11WEPDisabled)
pAd->PortCfg.PairCipher = pAd->ScanTab.BssEntry[BssIdx].WPA.PairCipherAux;
else // There is no PairCipher Aux, downgrade our capability to TKIP
pAd->PortCfg.PairCipher = Ndis802_11Encryption2Enabled;
}
else if ((pAd->PortCfg.AuthMode == Ndis802_11AuthModeWPA2) || (pAd->PortCfg.AuthMode == Ndis802_11AuthModeWPA2PSK))
{
pAd->PortCfg.GroupCipher = pAd->ScanTab.BssEntry[BssIdx].WPA2.GroupCipher;
if (pAd->PortCfg.WepStatus == pAd->ScanTab.BssEntry[BssIdx].WPA2.PairCipher)
pAd->PortCfg.PairCipher = pAd->ScanTab.BssEntry[BssIdx].WPA2.PairCipher;
else if (pAd->ScanTab.BssEntry[BssIdx].WPA2.PairCipherAux != Ndis802_11WEPDisabled)
pAd->PortCfg.PairCipher = pAd->ScanTab.BssEntry[BssIdx].WPA2.PairCipherAux;
else // There is no PairCipher Aux, downgrade our capability to TKIP
pAd->PortCfg.PairCipher = Ndis802_11Encryption2Enabled;
// RSN capability
pAd->PortCfg.RsnCapability = pAd->ScanTab.BssEntry[BssIdx].WPA2.RsnCapability;
}
// Set Mix cipher flag
if (pAd->PortCfg.PairCipher != pAd->PortCfg.GroupCipher)
pAd->PortCfg.bMixCipher = TRUE;
// No active association, join the BSS immediately
DBGPRINT(RT_DEBUG_TRACE, "CNTL - joining %02x:%02x:%02x:%02x:%02x:%02x ...\n",
pOidBssid[0],pOidBssid[1],pOidBssid[2],pOidBssid[3],pOidBssid[4],pOidBssid[5]);
JoinParmFill(pAd, &JoinReq, pAd->MlmeAux.BssIdx);
MlmeEnqueue(pAd, SYNC_STATE_MACHINE, MT2_MLME_JOIN_REQ,
sizeof(MLME_JOIN_REQ_STRUCT), &JoinReq);
pAd->Mlme.CntlMachine.CurrState = CNTL_WAIT_JOIN;
}
}
}
// Roaming is the only external request triggering CNTL state machine
// despite of other "SET OID" operation. All "SET OID" related oerations
// happen in sequence, because no other SET OID will be sent to this device
// until the the previous SET operation is complete (successful o failed).
// So, how do we quarantee this ROAMING request won't corrupt other "SET OID"?
// or been corrupted by other "SET OID"?
VOID CntlMlmeRoamingProc(
IN PRTMP_ADAPTER pAd,
IN MLME_QUEUE_ELEM *Elem)
{
// TODO:
// AP in different channel may show lower RSSI than actual value??
// should we add a weighting factor to compensate it?
DBGPRINT(RT_DEBUG_TRACE,"CNTL - Roaming in MlmeAux.RoamTab...\n");
NdisMoveMemory(&pAd->MlmeAux.SsidBssTab, &pAd->MlmeAux.RoamTab, sizeof(pAd->MlmeAux.RoamTab));
pAd->MlmeAux.SsidBssTab.BssNr = pAd->MlmeAux.RoamTab.BssNr;
BssTableSortByRssi(&pAd->MlmeAux.SsidBssTab);
pAd->MlmeAux.BssIdx = 0;
IterateOnBssTab(pAd);
}
/*
==========================================================================
Description:
==========================================================================
*/
VOID CntlWaitDisassocProc(
IN PRTMP_ADAPTER pAd,
IN MLME_QUEUE_ELEM *Elem)
{
MLME_START_REQ_STRUCT StartReq;
if (Elem->MsgType == MT2_DISASSOC_CONF)
{
DBGPRINT(RT_DEBUG_TRACE, "CNTL - Dis-associate successful\n");
LinkDown(pAd, FALSE);
// case 1. no matching BSS, and user wants ADHOC, so we just start a new one
if ((pAd->MlmeAux.SsidBssTab.BssNr==0) && (pAd->PortCfg.BssType == BSS_ADHOC))
{
DBGPRINT(RT_DEBUG_TRACE, "CNTL - No matching BSS, start a new ADHOC (Ssid=%s)...\n",pAd->MlmeAux.Ssid);
StartParmFill(pAd, &StartReq, pAd->MlmeAux.Ssid, pAd->MlmeAux.SsidLen);
MlmeEnqueue(pAd, SYNC_STATE_MACHINE, MT2_MLME_START_REQ,
sizeof(MLME_START_REQ_STRUCT), &StartReq);
pAd->Mlme.CntlMachine.CurrState = CNTL_WAIT_START;
}
// case 2. try each matched BSS
else
{
pAd->MlmeAux.BssIdx = 0;
IterateOnBssTab(pAd);
}
}
}
/*
==========================================================================
Description:
==========================================================================
*/
VOID CntlWaitJoinProc(
IN PRTMP_ADAPTER pAd,
IN MLME_QUEUE_ELEM *Elem)
{
USHORT Reason;
MLME_AUTH_REQ_STRUCT AuthReq;
if (Elem->MsgType == MT2_JOIN_CONF)
{
NdisMoveMemory(&Reason, Elem->Msg, sizeof(USHORT));
if (Reason == MLME_SUCCESS)
{
// 1. joined an IBSS, we are pretty much done here
if (pAd->MlmeAux.BssType == BSS_ADHOC)
{
LinkUp(pAd, BSS_ADHOC);
pAd->Mlme.CntlMachine.CurrState = CNTL_IDLE;
DBGPRINT(RT_DEBUG_TRACE, "CNTL - join the IBSS = %02x:%02x:%02x:%02x:%02x:%02x ...\n",
pAd->PortCfg.Bssid[0],pAd->PortCfg.Bssid[1],pAd->PortCfg.Bssid[2],
pAd->PortCfg.Bssid[3],pAd->PortCfg.Bssid[4],pAd->PortCfg.Bssid[5]);
}
// 2. joined a new INFRA network, start from authentication
else
{
// either Ndis802_11AuthModeShared or Ndis802_11AuthModeAutoSwitch, try shared key first
if ((pAd->PortCfg.AuthMode == Ndis802_11AuthModeShared) ||
(pAd->PortCfg.AuthMode == Ndis802_11AuthModeAutoSwitch))
{
AuthParmFill(pAd, &AuthReq, pAd->MlmeAux.Bssid, Ndis802_11AuthModeShared);
}
else
{
AuthParmFill(pAd, &AuthReq, pAd->MlmeAux.Bssid, Ndis802_11AuthModeOpen);
}
MlmeEnqueue(pAd, AUTH_STATE_MACHINE, MT2_MLME_AUTH_REQ,
sizeof(MLME_AUTH_REQ_STRUCT), &AuthReq);
pAd->Mlme.CntlMachine.CurrState = CNTL_WAIT_AUTH;
}
}
else
{
// 3. failed, try next BSS
pAd->MlmeAux.BssIdx++;
IterateOnBssTab(pAd);
}
}
}
/*
==========================================================================
Description:
==========================================================================
*/
VOID CntlWaitStartProc(
IN PRTMP_ADAPTER pAd,
IN MLME_QUEUE_ELEM *Elem)
{
USHORT Result;
if (Elem->MsgType == MT2_START_CONF)
{
NdisMoveMemory(&Result, Elem->Msg, sizeof(USHORT));
if (Result == MLME_SUCCESS)
{
LinkUp(pAd, BSS_ADHOC);
pAd->Mlme.CntlMachine.CurrState = CNTL_IDLE;
// Before send beacon, driver need do radar detection
if (((pAd->PortCfg.PhyMode == PHY_11A) || (pAd->PortCfg.PhyMode == PHY_11ABG_MIXED))&& (pAd->PortCfg.bIEEE80211H == 1) && RadarChannelCheck(pAd, pAd->PortCfg.Channel))
{
pAd->PortCfg.RadarDetect.RDMode = RD_SILENCE_MODE;
pAd->PortCfg.RadarDetect.RDCount = 0;
RadarDetectionStart(pAd);
}
DBGPRINT(RT_DEBUG_TRACE, "CNTL - start a new IBSS = %02x:%02x:%02x:%02x:%02x:%02x ...\n",
pAd->PortCfg.Bssid[0],pAd->PortCfg.Bssid[1],pAd->PortCfg.Bssid[2],
pAd->PortCfg.Bssid[3],pAd->PortCfg.Bssid[4],pAd->PortCfg.Bssid[5]);
}
else
{
DBGPRINT(RT_DEBUG_TRACE, "CNTL - Start IBSS fail. BUG!!!!!\n");
pAd->Mlme.CntlMachine.CurrState = CNTL_IDLE;
}
}
}
/*
==========================================================================
Description:
==========================================================================
*/
VOID CntlWaitAuthProc(
IN PRTMP_ADAPTER pAd,
IN MLME_QUEUE_ELEM *Elem)
{
USHORT Reason;
MLME_ASSOC_REQ_STRUCT AssocReq;
MLME_AUTH_REQ_STRUCT AuthReq;
if (Elem->MsgType == MT2_AUTH_CONF)
{
NdisMoveMemory(&Reason, Elem->Msg, sizeof(USHORT));
if (Reason == MLME_SUCCESS)
{
DBGPRINT(RT_DEBUG_TRACE, "CNTL - AUTH OK\n");
AssocParmFill(pAd, &AssocReq, pAd->MlmeAux.Bssid, pAd->MlmeAux.CapabilityInfo,
ASSOC_TIMEOUT, pAd->PortCfg.DefaultListenCount);
MlmeEnqueue(pAd, ASSOC_STATE_MACHINE, MT2_MLME_ASSOC_REQ,
sizeof(MLME_ASSOC_REQ_STRUCT), &AssocReq);
pAd->Mlme.CntlMachine.CurrState = CNTL_WAIT_ASSOC;
}
else
{
// This fail may because of the AP already keep us in its MAC table without
// ageing-out. The previous authentication attempt must have let it remove us.
// so try Authentication again may help. For D-Link DWL-900AP+ compatibility.
DBGPRINT(RT_DEBUG_TRACE, "CNTL - AUTH FAIL, try again...\n");
if ((pAd->PortCfg.AuthMode == Ndis802_11AuthModeShared) ||
(pAd->PortCfg.AuthMode == Ndis802_11AuthModeAutoSwitch))
{
// either Ndis802_11AuthModeShared or Ndis802_11AuthModeAutoSwitch, try shared key first
AuthParmFill(pAd, &AuthReq, pAd->MlmeAux.Bssid, Ndis802_11AuthModeShared);
}
else
{
AuthParmFill(pAd, &AuthReq, pAd->MlmeAux.Bssid, Ndis802_11AuthModeOpen);
}
MlmeEnqueue(pAd, AUTH_STATE_MACHINE, MT2_MLME_AUTH_REQ,
sizeof(MLME_AUTH_REQ_STRUCT), &AuthReq);
pAd->Mlme.CntlMachine.CurrState = CNTL_WAIT_AUTH2;
}
}
}
/*
==========================================================================
Description:
==========================================================================
*/
VOID CntlWaitAuthProc2(
IN PRTMP_ADAPTER pAd,
IN MLME_QUEUE_ELEM *Elem)
{
USHORT Reason;
MLME_ASSOC_REQ_STRUCT AssocReq;
MLME_AUTH_REQ_STRUCT AuthReq;
if (Elem->MsgType == MT2_AUTH_CONF)
{
NdisMoveMemory(&Reason, Elem->Msg, sizeof(USHORT));
if (Reason == MLME_SUCCESS)
{
DBGPRINT(RT_DEBUG_TRACE, "CNTL - AUTH OK\n");
AssocParmFill(pAd, &AssocReq, pAd->MlmeAux.Bssid, pAd->MlmeAux.CapabilityInfo,
ASSOC_TIMEOUT, pAd->PortCfg.DefaultListenCount);
MlmeEnqueue(pAd, ASSOC_STATE_MACHINE, MT2_MLME_ASSOC_REQ,
sizeof(MLME_ASSOC_REQ_STRUCT), &AssocReq);
pAd->Mlme.CntlMachine.CurrState = CNTL_WAIT_ASSOC;
}
else
{
if ((pAd->PortCfg.AuthMode == Ndis802_11AuthModeAutoSwitch) &&
(pAd->MlmeAux.Alg == Ndis802_11AuthModeShared))
{
DBGPRINT(RT_DEBUG_TRACE, "CNTL - AUTH FAIL, try OPEN system...\n");
AuthParmFill(pAd, &AuthReq, pAd->MlmeAux.Bssid, Ndis802_11AuthModeOpen);
MlmeEnqueue(pAd, AUTH_STATE_MACHINE, MT2_MLME_AUTH_REQ,
sizeof(MLME_AUTH_REQ_STRUCT), &AuthReq);
pAd->Mlme.CntlMachine.CurrState = CNTL_WAIT_AUTH2;
}
else
{
// not success, try next BSS
DBGPRINT(RT_DEBUG_TRACE, "CNTL - AUTH FAIL, give up; try next BSS\n");
// 2004-09-11 john - why change state?
// pAd->Mlme.CntlMachine.CurrState = CNTL_IDLE; //???????
pAd->MlmeAux.BssIdx++;
IterateOnBssTab(pAd);
}
}
}
}
/*
==========================================================================
Description:
==========================================================================
*/
VOID CntlWaitAssocProc(
IN PRTMP_ADAPTER pAd,
IN MLME_QUEUE_ELEM *Elem)
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