[tor-bugs] #3786 [Tor Relay]: Make clients and bridges use their IPv6 address

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#3786: Make clients and bridges use their IPv6 address
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 Reporter:  ln5        |          Owner:  ln5               
     Type:  task       |         Status:  needs_review      
 Priority:  normal     |      Milestone:  Tor: 0.2.3.x-final
Component:  Tor Relay  |        Version:                    
 Keywords:             |         Parent:  #3563             
   Points:             |   Actualpoints:                    
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Comment(by ln5):

 Replying to [comment:13 ln5]:
 > > In get_configured_bridge_by_routerinfo: if there is no bridge
 configured with the preferred address, should we fall back and check
 whether there is one configured with the primary address?  Or did I
 misunderstand something?
 >
 > We should check "the other" address.  I totally missed that.
 > More generally, we should check all addresses, preferring "the
 preferred".

 On second thought, is this really necessary?  Since a router won't
 have ri->ipv6_preferred set unless we've seen an IPv6 address in its
 descriptor fetching by preferred address won't fail.

 What worries me more is the way
 get_configured_bridge_by_addr_port_digest() might return a bridge with
 another address than the one we ask for.  This might happen when we
 don't pass it a digest.  How bad would that be?

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/3786#comment:14>
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