[tor-bugs] #3804 [Tor Relay]: Bufferevent rate-limiting logic handles filtering badly

Tor Bug Tracker & Wiki torproject-admin at torproject.org
Wed Aug 24 20:59:21 UTC 2011

#3804: Bufferevent rate-limiting logic handles filtering badly
 Reporter:  nickm      |          Owner:                    
     Type:  defect     |         Status:  new               
 Priority:  normal     |      Milestone:  Tor: 0.2.3.x-final
Component:  Tor Relay  |        Version:                    
 Keywords:             |         Parent:  #3561             
   Points:             |   Actualpoints:                    
 When we're doing filtering ssl bufferevents, we want the rate-limits to
 apply to the lowest level of the bufferevent stack, so that we're actually
 limiting bytes sent on the network.  Otherwise, we'll read from the
 network ad libitum.

 Also, we need to set write high-water marks for the lowest-level
 bufferevents in the filtering stack, or else we might prematurely ssl-ify
 data faster than we could write it, which would be silly.

Ticket URL: <https://trac.torproject.org/projects/tor/ticket/3804>
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