windows-ext

[pipitas]

Michael Sweet wrote:

> Marco wrote:
>> If i configure a printer on WindowsXP with
>> http://printserver:631/printers/queue
>> 
>> i get this error...
>> 
>> ------ error_log
>> 
>> D [15/Nov/2006:11:59:43 +0100] Request attributes follow...
>> D [15/Nov/2006:11:59:43 +0100] attr "attributes-charset": group_tag = 1,
>> value_tag = 47 D [15/Nov/2006:11:59:43 +0100] attr
>> "attributes-natural-language": group_tag = 1, value_tag = 48 D
>> [15/Nov/2006:11:59:43 +0100] End of attributes... D [15/Nov/2006:11:59:43
>> +0100] windows-ext client-error-bad-request: Missing required attributes!
>> D [15/Nov/2006:11:59:43 +0100] cupsdProcessIPPRequest: 10 status_code=400
>> (client-error-bad-request) D [15/Nov/2006:11:59:43 +0100]
>> cupsdReadClient: 10 POST /printers/lpape1_2s HTTP/1.1
>> 
>> ------------------------------------------
>> 
>> Windows System crash......
> 
> The Windows system should definitely not crash because of this.
> 
> windows-ext is the (undocumented) Microsoft IPP extension operation
> registered with the IETF for printer driver download.  We've asked
> Microsoft for documentation on this operation several times but never
> gotten a response.  One day we may succeed in figuring out how this
> operation works and implement it in CUPS...

May be a good candidate for the next "Google Summer of Code" 
challenge if you find a gifted guy who is not afraid of looking 
at network traces to figure out what's going on... :-)