[29166] in Kerberos
Re: SSPI API to get tokensize for client and server
daemon@ATHENA.MIT.EDU (Jeffrey Altman)
Mon Jan 28 15:56:20 2008
X-Envelope-From: jaltman@secure-endpoints.com
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Message-ID: <479E4199.4090507@secure-endpoints.com>
Date: Mon, 28 Jan 2008 12:56:57 -0800
From: Jeffrey Altman <jaltman@secure-endpoints.com>
MIME-Version: 1.0
To: manojm@us.ibm.com
In-Reply-To: <OF6F69F7A0.609DA975-ON862573DE.0071EFCC-862573DE.00723F49@us.ibm.com>
Cc: kerberos@mit.edu
Reply-To: jaltman@secure-endpoints.com
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You are using the correct API. Read the documentation. The API will
tell you the size of the memory you need to allocate.
Manoj Mohan wrote:
>
> Yeah thats true.. so how do I ensure that it works generically. I was
> hoping to call some API which will help me to do that.
> Is there one ?
>
> Manoj
> Inactive hide details for Jeffrey Altman
> <jaltman@secure-endpoints.com>Jeffrey Altman
> <jaltman@secure-endpoints.com>
>
>
> *Jeffrey Altman <jaltman@secure-endpoints.com>*
>
> 01/28/2008 02:40 PM
> Please respond to
> jaltman@secure-endpoints.com
>
>
>
> To
>
> Manoj Mohan/Lenexa/IBM@IBMUS
>
> cc
>
> kerberos@mit.edu
>
> Subject
>
> Re: SSPI API to get tokensize for client and server
>
>
>
>
> that code will only work if the generated token is 4096 bytes or smaller.
>
> Manoj Mohan wrote:
> > Hi,
> >
> > Right now I am calling InitializeSecurityContext and
> AcceptSecurityContext
> > with fixed token size (4096)
> > and things are working. I was wondering if I can call
> > QueryContextAttributes or some other function
> > to get the right value rather than using a fixed value?
> >
> > For example, I am using using AcceptSecurityContext like this:
> >
> > ....................
> > outBuffer.cbBuffer = 4096;
> > outBuffer.BufferType = SECBUFFER_TOKEN;
> > outToken.ulVersion = SECBUFFER_VERSION;
> > outToken.cBuffers = 1;
> > outToken.pBuffers = &outBuffer;
> >
> > ss = AcceptSecurityContext( pCredHandle,
> > pInCtxHandle,
> > &inToken,
> > NULL,
> > SECURITY_NATIVE_DREP,
> > pOutCtxHandle,
> > &outToken,
> > &outFlags,
> > &lifetime );
> > if( ss != SEC_E_OK )
> > .................................
> >
> > Regards,.........................
> > Manoj
> > ________________________________________________
> > Kerberos mailing list Kerberos@mit.edu
> > https://mailman.mit.edu/mailman/listinfo/kerberos
>
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