Access Control List and Security Descriptor

Yosh

How do you validate a user that is currently logged in against a Security
Descriptor to see if they have access to an object?

Hope this makes sense.

Thanks,

Yosh

Nov 22 '05 #1

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1256

Willy Denoyette [MVP]

"Yosh" <dp***@nospam.s atx.rr.com> wrote in message
news:u4******** ******@TK2MSFTN GP14.phx.gbl...

How do you validate a user that is currently logged in against a Security
Descriptor to see if they have access to an object?

Hope this makes sense.

Thanks,

Yosh

By accessing the object in a try/catch blok, an exception will be thrown if
there is an access violation.

Willy.

Nov 22 '05 #2

John Vottero

"Yosh" <dp***@nospam.s atx.rr.com> wrote in message
news:u4******** ******@TK2MSFTN GP14.phx.gbl...

How do you validate a user that is currently logged in against a Security
Descriptor to see if they have access to an object?

Hope this makes sense.

You get the user's security token from
System.Security .Principal.Wind owsIdentity. You have to use P/Invoke to call
DuplicateToken to get a token with a SecurityImperso nationLevel of
SecurityIdentif ication and then you use P/Invoke to call AccessCheck or one
of its variants.

That's the 100,000 foot description.

Nov 22 '05 #3

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