[tor-bugs] #4806 [Tor Client]: Detect and warn when running IPv6-using client without IPv6 address privacy

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#4806: Detect and warn when running IPv6-using client without IPv6 address privacy
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 Reporter:  nickm        |          Owner:                    
     Type:  enhancement  |         Status:  needs_review      
 Priority:  major        |      Milestone:  Tor: 0.2.4.x-final
Component:  Tor Client   |        Version:                    
 Keywords:  ipv6         |         Parent:                    
   Points:               |   Actualpoints:                    
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Comment(by nickm):

 Looks like this handles the Linux version okay.

 I've squashed these and made the code style a little more like ours in
 branch "bug4806_linux" in my public repository.

 Before merging, we need to think about:

    * whether to be more restrictive about what interfaces we check on.  If
 all my VM interfaces have use_tempaddr disabled, that might not be a
 problem.  If I haven't enabled IPv6 at all, it isn't a problem.
    * Backing off from read_file_to_string, or adding a new flag to that
 function to yield the whole file.  Right now, on my linux machine at
 least, doing fstat() on those files in proc says that the size is 0, so
 the function only reads an empty string.

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/4806#comment:8>
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