Wireless Provisioning Services and IAS Authorization DLL

Hi All,

I am trying to develop a solution with WPS technology since two months
without success.
I read the James McIllece's documentation (WPSDeploy.doc) many times to
develop an IAS Authorization DLL to insert the ratEAPTLV attribute using
RadiusExtensionProcess2 function.
My DLL can manipulate, change/add/delete many radius attributes without
errors.(some modifications changes the authentication type from EAP to PAP,
so I'm avoiding this side effects). But I can not insert the ratEAPTLV
without problems.

First I have doubts around the documentations. Using informations gotten in
WPSDeploy.doc and WPS SDK, I created the packet struct below:

typedef struct _PEAPTLV_URI {

int MandatoryRequirement:1; //Binary 1 bit, using zero

int TLVReserverd:1; //Binary 1 bit, using zero

int TLVType:14; //Binary 14 bits, using value 8

UCHAR TLVValueLength; //URI length in octets

UCHAR TLVValue[UNLEN]; //The WPS URI

}PEAPTLV_URI, *pPEAPTLV_URI;

OK, looking to the struct above I need to note that the field TLVValueLength
is a UCHAR type, but from draft-josefsson-pppext-eap-tls-eap-10.txt this
field is 16 bit value. Does the IAS implementation using a UCHAR (8 bits)
or
this field should be a WORD/u_short/u16 ?

As I'm not an expert programmer as I need to be, another question is how to
setup the RADIUS_ATTRIBUTE struct fields.
I know that to use the "PCSTR lpValue", the RADIUS_DATA_TYPE must be
rdtUnknown or rdtString. Which of the two is the correct one?

On my tests I have used the two options: As rdtUnknown I get an error 87. As
rdtString I get NO_ERROR but after this an internal error is reported by
iassam.log as below:
[2340] 11-28 10:58:59:328: Issuing Access-Challenge.
[2340] 11-28 10:58:59:328: Invoking AuthorizationDLLs
[2340] 11-28 10:58:59:328: Invoking extension IASGuest.dll
[2340] 11-28 10:58:59:328: RADIUS_ATTRIBUTE_ARRAY.Add(rcAccessRequest, 273)
[2340] 11-28 10:58:59:328: RadiusExtensionProcess2 returned 0
[2340] 11-28 10:58:59:328: RasEapMakeMessage failed: An internal error
occurred.
[2340] 11-28 10:58:59:328: Caught COM exception: An internal error occurred.

I'm so tired looking for one information to solve my problem. Google, books,
MS Site ad so on. Please I need a help.

Thanks in advance
Washington Moreira

Washington Moreira

As I stated in microsoft.public.internet.radius, I am also trying to do
this. And so is another person in there. If anyone can help the three of us
write one of these, it would be greatly appreciated by all. See the posts in
these:

microsoft.public.internet.radius
microsoft.public.win32.programmer.networks

Thanks for any help!

"Washington Moreira" <> wrote in message
news:...
> Hi All,
>
> I am trying to develop a solution with WPS technology since two months
> without success.
> I read the James McIllece's documentation (WPSDeploy.doc) many times to
> develop an IAS Authorization DLL to insert the ratEAPTLV attribute using
> RadiusExtensionProcess2 function.
> My DLL can manipulate, change/add/delete many radius attributes without
> errors.(some modifications changes the authentication type from EAP to
> PAP,
> so I'm avoiding this side effects). But I can not insert the ratEAPTLV
> without problems.
>
> First I have doubts around the documentations. Using informations gotten
> in
> WPSDeploy.doc and WPS SDK, I created the packet struct below:
>
> typedef struct _PEAPTLV_URI {
>
> int MandatoryRequirement:1; //Binary 1 bit, using zero
>
> int TLVReserverd:1; //Binary 1 bit, using zero
>
> int TLVType:14; //Binary 14 bits, using value 8
>
> UCHAR TLVValueLength; //URI length in octets
>
> UCHAR TLVValue[UNLEN]; //The WPS URI
>
> }PEAPTLV_URI, *pPEAPTLV_URI;
>
> OK, looking to the struct above I need to note that the field
> TLVValueLength
> is a UCHAR type, but from draft-josefsson-pppext-eap-tls-eap-10.txt this
> field is 16 bit value. Does the IAS implementation using a UCHAR (8 bits)
> or
> this field should be a WORD/u_short/u16 ?
>
> As I'm not an expert programmer as I need to be, another question is how
> to
> setup the RADIUS_ATTRIBUTE struct fields.
> I know that to use the "PCSTR lpValue", the RADIUS_DATA_TYPE must be
> rdtUnknown or rdtString. Which of the two is the correct one?
>
> On my tests I have used the two options: As rdtUnknown I get an error 87.
> As
> rdtString I get NO_ERROR but after this an internal error is reported by
> iassam.log as below:
> [2340] 11-28 10:58:59:328: Issuing Access-Challenge.
> [2340] 11-28 10:58:59:328: Invoking AuthorizationDLLs
> [2340] 11-28 10:58:59:328: Invoking extension IASGuest.dll
> [2340] 11-28 10:58:59:328: RADIUS_ATTRIBUTE_ARRAY.Add(rcAccessRequest,
> 273)
> [2340] 11-28 10:58:59:328: RadiusExtensionProcess2 returned 0
> [2340] 11-28 10:58:59:328: RasEapMakeMessage failed: An internal error
> occurred.
> [2340] 11-28 10:58:59:328: Caught COM exception: An internal error
> occurred.
>
> I'm so tired looking for one information to solve my problem. Google,
> books,
> MS Site ad so on. Please I need a help.
>
> Thanks in advance
> Washington Moreira
>

Eliot Gable

hi!
i want to take my pc anywhere with internet on it,but how?
i also trying to make it a wireless...
then i take it outside but it still the same...
please help...
mhelz

"Washington Moreira" wrote:

> Hi All,
>
> I am trying to develop a solution with WPS technology since two months
> without success.
> I read the James McIllece's documentation (WPSDeploy.doc) many times to
> develop an IAS Authorization DLL to insert the ratEAPTLV attribute using
> RadiusExtensionProcess2 function.
> My DLL can manipulate, change/add/delete many radius attributes without
> errors.(some modifications changes the authentication type from EAP to PAP,
> so I'm avoiding this side effects). But I can not insert the ratEAPTLV
> without problems.
>
> First I have doubts around the documentations. Using informations gotten in
> WPSDeploy.doc and WPS SDK, I created the packet struct below:
>
> typedef struct _PEAPTLV_URI {
>
> int MandatoryRequirement:1; //Binary 1 bit, using zero
>
> int TLVReserverd:1; //Binary 1 bit, using zero
>
> int TLVType:14; //Binary 14 bits, using value 8
>
> UCHAR TLVValueLength; //URI length in octets
>
> UCHAR TLVValue[UNLEN]; //The WPS URI
>
> }PEAPTLV_URI, *pPEAPTLV_URI;
>
> OK, looking to the struct above I need to note that the field TLVValueLength
> is a UCHAR type, but from draft-josefsson-pppext-eap-tls-eap-10.txt this
> field is 16 bit value. Does the IAS implementation using a UCHAR (8 bits)
> or
> this field should be a WORD/u_short/u16 ?
>
> As I'm not an expert programmer as I need to be, another question is how to
> setup the RADIUS_ATTRIBUTE struct fields.
> I know that to use the "PCSTR lpValue", the RADIUS_DATA_TYPE must be
> rdtUnknown or rdtString. Which of the two is the correct one?
>
> On my tests I have used the two options: As rdtUnknown I get an error 87. As
> rdtString I get NO_ERROR but after this an internal error is reported by
> iassam.log as below:
> [2340] 11-28 10:58:59:328: Issuing Access-Challenge.
> [2340] 11-28 10:58:59:328: Invoking AuthorizationDLLs
> [2340] 11-28 10:58:59:328: Invoking extension IASGuest.dll
> [2340] 11-28 10:58:59:328: RADIUS_ATTRIBUTE_ARRAY.Add(rcAccessRequest, 273)
> [2340] 11-28 10:58:59:328: RadiusExtensionProcess2 returned 0
> [2340] 11-28 10:58:59:328: RasEapMakeMessage failed: An internal error
> occurred.
> [2340] 11-28 10:58:59:328: Caught COM exception: An internal error occurred.
>
> I'm so tired looking for one information to solve my problem. Google, books,
> MS Site ad so on. Please I need a help.
>
> Thanks in advance
> Washington Moreira
>
>
>

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