Problem with wlan IAP

**andrea993** · 2012-09-20, 07:57

Hi all,
I have been made a wlan access point in symbian C++ for my router.

Code:

CApAccessPointItem *wlan = CApAccessPointItem::NewLC();
    wlan->SetNamesL(_L("MioAP"));
    wlan->SetBearerTypeL(EApBearerTypeWLAN);
    wlan->WriteTextL(EApWlanNetworkName,_L("Alice-55564905"));
    wlan->WriteUint(EApWlanSecurityMode,EWep);
    wlan->WriteUint(EApWlanNetworkMode,EInfra);

    CCommsDatabase *db= CCommsDatabase::NewL();
    CleanupStack::PushL(db);
    CApDataHandler *handler= CApDataHandler::NewLC(*db);
    TInt err= db->BeginTransaction();

    TUint32 newApId= handler->CreateFromDataL(*wlan);

    handler->AccessPointDataL(newApId,*wlan);


    TUint32 wlanId;
    wlan->ReadUint(EApIapServiceId,wlanId);

    CCommsDbTableView* view=db->OpenViewMatchingUintLC(TPtrC( WLAN_SERVICE),TPtrC( WLAN_SERVICE_ID),wlanId);

    err=view->GotoFirstRecord();


        view->UpdateRecord();
        TRAP(err,view->WriteUintL(TPtrC(NU_WLAN_AUTHENTICATION_MODE),(TUint32)EAuthShared));
        TRAP(err,view->WriteUintL(TPtrC(WLAN_WEP_INDEX),(TUint32)EKeyNumber1));
        TRAP(err,view->WriteTextL(TPtrC(NU_WLAN_WEP_KEY1),_L("xxxxxxxxxxxxxxxxxx")));
        TRAP(err,view->WriteUintL(TPtrC(WLAN_WEP_KEY1_FORMAT),(TUint32)EAscii));
        view->PutRecordChanges();
        db->CommitTransaction();

The device can connect to the router but it doesn't find the default gateway and the DNSs then it can't access to internet.

If I try to make the same IAP with the manual configuration of symbian OS when I connect the device to the router it found automatically gateway and DNSs.
Why?

**pavarang** · 2012-09-20, 09:37

Ciao,
I think that columns for DNS and gateway settings are into LAN_SERVICE table, take a look at cdbcols.h; i don't know by which index LAN_SERVICE and WLAN_SERVICE tables are related, but you could try to read values from a manually configured IAP and try to replicate them in the programmatically configured one.
If i well remember from your previous posts, you decided to not use CApAccessPointItem bacause deprecated; well... i had the same constraint as you, but i found that it's still valid in SymbianBelle (i use it for GPRS IAP creation), very easy to use, and there's no risk to mess tables around :-)
There's a wlan example here, maybe it's working:
http://read.pudn.com/downloads96/sou...ppui.cpp__.htm

buon lavoro!
pg

EDIT: found this old thread: http://www.developer.nokia.com/Commu...in-ad-hoc-mode

**andrea993** · 2012-09-28, 16:53

Ciao,
I have read the documentations but they do not explain other.

I think I' ve read all values of the wifi configuartion made by Symbian manual configurator.
They seems to be equals.
Then why it doesn't find DNSs and gateway??
I'm desperate

Grazie mille
A993

**pavarang** · 2012-09-29, 21:06

Hello,
just to be sure that you have tried everything, have you tried also:
http://www.developer.nokia.com/Commu...in-ad-hoc-mode, post #6 (how to get the correct corresponding table into commdb...)
trying to use _L8("MioAP") or _L8("Alice-55564905") instead of _L8("ApE51") ?
and trying to use

Code:

lanServiceView->WriteBoolL(TPtrC(SERVICE_IP_ADDR_FROM_SERVER), ETrue);
lanServiceView->WriteBoolL(TPtrC(SERVICE_IP_DNS_ADDR_FROM_SERVER), ETrue);

instead of

Code:

lanServiceView->WriteBoolL(TPtrC(SERVICE_IP_ADDR_FROM_SERVER), EFalse);
lanServiceView->WriteBoolL(TPtrC(SERVICE_IP_DNS_ADDR_FROM_SERVER), EFalse);

?

otherwise i haven't any other suggestions, sorry
regards
pg

**pavarang** · 2012-09-29, 21:21

I just found this link in the library (click on it twice):
http://library.developer.nokia.com/i...ntItem_8h.html
where:
EApWlanIpNetMask,
EApWlanIpGateway, EApWlanIpAddrFromServer, EApWlanIpAddr, EApWlanIpDnsAddrFromServer,
EApWlanIPNameServer1, EApWlanIPNameServer2
are defined, and an example:
http://sensorkit.googlecode.com/svn-...c/WlanInit.cpp

regards,
pg

**andrea993** · 2012-09-30, 11:18

Thank you very much
But I've found the problem with ceddump.
The problem is NU_WLAN_WEP_KEY1, the key of the iap in HEX.
My router password is "aannddrreeaa0"
The password in hex stored in the DB by the symbian OS configuration is:
"\x3136\x3136\x4536\x4536\x3436\x3436\x3237\x3237\x3536\x3536\x3136\x3136\x3033\xCECE\xCECE\xCECE\xCECE\xCECE\xCECE\xCECE\xCECE\xCECE\xCECE\xCECE\xCECE\xCECE"

x3136=a
x4536=n
x3436=d
..
..

But what kind of codify is it? I've never saw it

Grazie mille ancora

**wizard_hu_** · 2012-10-01, 14:22

It is quite easy to find something. In the English alphabet 'a' and 'd' are 3 codes apart, and the second digit (from the left) in 3136 and 3436 really changes by 3. Also, the ASCII code of numerical digits is 3x, so 30 for 0, and 'something like that' appears in 3033. CE seems to be a filler code.
So the ASCII code of 'a' is 61, 'd' is 64, 'r' is 72. And the ASCII codes for them are 36,31,34,37,32.
Now comes the 'n' is 6E. 36 is really the code for 6, and 45 turns out to be the ASCII code of upper case E.
Thus what you see is simply the upper-case encoded hexadecimal string of the ASCII codes of your key. The order of the digit-pairs is swapped because you see them as 16-bit codes for some reason. But in the memory they would look like 3631363136453645...3330, which forms the string 61616E6E...30, which is aann...0.
I strongly assume that it is mentioned somewhere in the documentation, and perhaps even part of the WLAN specs somehow (at least I remember that various WLAN-things offered me to specify the key as a hexadecimal string).

**andrea993** · 2012-10-05, 18:25

Thank you, it work.
But if I pass to "WriteTextL(TPtrC(NU_WLAN_WEP_KEY1),keybuf)" a TBufC16<156> keybuf.
And keybuf is the correct string. It leave with kerroverflow

**wizard_hu_** · 2012-10-05, 19:08

You may really want to check the specification, because I do not want to. But I know for sure that there are specific key sizes which can be used. 156 is unlikely amongst them (regardless of speaking of 156 bits or 156 bytes, it is just a too complicated number).

**andrea993** · 2012-10-06, 15:47

but if i pass to the function the same string (size 156) with _L("...string...") it works

**pavarang** · 2012-10-06, 21:02

Hello,
are you sure it's a TBufC16? I think it's a buf8...
regards
pg

**andrea993** · 2012-10-07, 20:48

It's a TDesC16

**pavarang** · 2012-10-07, 22:24

because I've looked into sources, and i can find only 8 buf related to it
for example:
into /mw/ipconnmgmt/cmmanager/cmmgr/database/src/cmmanagertableformats.cpp

Code:

const SRecordTypeInfo CCDWlanServiceRecord::iRecordInfo[]=
  	{
...
    	{ KCDTIdWlanWepKey1,	        EDesC8,     ENoAttrs,   NU_WLAN_WEP_KEY1 },
        { KCDTIdWlanWepKey2,	        EDesC8,     ENoAttrs,   NU_WLAN_WEP_KEY2 },
    	{ KCDTIdWlanWepKey3,	        EDesC8,     ENoAttrs,   NU_WLAN_WEP_KEY3 },
        { KCDTIdWlanWepKey4,	        EDesC8,     ENoAttrs,   NU_WLAN_WEP_KEY4 },
...
  	};

into /app/devicecontrol/omadmadapters/nsmldminternet/src/NSmlWlanSettings.cpp:

Code:

TBuf8<KCommsDbSvrMaxFieldLength> columnValue8;
TRAP(leavecode, iTableView->ReadTextL(TPtrC(NU_WLAN_WEP_KEY1),columnValue8));

and

Code:

iTableView->WriteTextL(TPtrC(NU_WLAN_WEP_KEY1), aWlanSettings->WepKey1);

where TWlanSettings* aWlanSettings

and

Code:

class TWlanSettings
    {
public:
    TBuf<KMaxTextLength> Name;
    TUint32 Id;
    TUint32 ServiceID;
    TUint32 ConnectionMode; // Infrastructure / adhoc
    TBuf<KMaxTextLength> SSID;
    TBuf8<KMaxTextLength> WepKey1;
    TBuf8<KMaxTextLength> WepKey2;
    TBuf8<KMaxTextLength> WepKey3;
    TBuf8<KMaxTextLength> WepKey4;
    TUint32 WepIndex;
    TUint32 SecurityMode; // SecurityMode (Allow unsecure, wep, 802.1xs, wpa) enum EWlanSecurityMode
    TUint32 WPAMode; // enum EWpaMode
    TUint32 UseWPAPSK; // CR ID: TMVI-5Y49AS
    TBuf8<KMaxPSKLength> WPAPreSharedKey;
    TUint32 AuthMode;
    TBuf<KMaxTextLength> UsedSSID;
    TUint32 ScanSSID;
    TBuf<KMaxLongTextLength> EapList;
    TBool SecondarySSIDsExisting;
    //    TBuf<KMaxTextLength>        SecondarySSID;
    //    TBuf<KMaxTextLength>        UsedSecondarySSID;

    };

**andrea993** · 2012-12-30, 16:16

Code:

IMPORT_C void WriteTextL(const TDesC& aColumn, const TDesC8& aValue);
	IMPORT_C void WriteTextL(const TDesC& aColumn, const TDesC16& aValue);

Is equal but why _L("mykeyCrypted") works and TBufC16<156> keybuf doesn't work??It is not possible!!

**andrea993** · 2012-12-31, 09:44

I solved with HBufC.
Now how can I set the destination folder of the iap?
I want to insert my iap in "Internet" destination folder

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