[tor-bugs] #6937 [Tor Client]: SocksPipe or SocksSocket - an anonymous pipe to smoke network leakings bug out (of)

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#6937: SocksPipe or SocksSocket - an anonymous pipe to smoke network leakings bug
out (of)
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 Reporter:  ioerror                  |          Owner:                    
     Type:  enhancement              |         Status:  new               
 Priority:  normal                   |      Milestone:  Tor: 0.2.4.x-final
Component:  Tor Client               |        Version:  Tor: unspecified  
 Keywords:  security needs-proposal  |         Parent:                    
   Points:                           |   Actualpoints:                    
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Comment(by ioerror):

 I'll open another ticket about a related idea and I'll also describe it
 here first. Regardless of what we use as the Application -> Tor transport,
 we want a way for Applications, including *other* Tor clients on the
 system, to know that Tor is running and how to reach it. It seems that we
 could solve a lot of file system permissions by creating a globally shared
 segment of memory, filling it with information on ways to reach Tor and
 letting each application pick the most reasonable method for connections.

 It seems reasonable to do this with shm_open - regardless of what we stuff
 inside. We could at least then easily-configure all apps to understand
 that they should look for a running Tor with shm_open() - we just need to
 pick a name, such as 'tor-shim' and then stick with it. In this sense, any
 application could launch a tor and all other applications could find it
 and use it *but* they wouldn't need to launch a reasonable Tor was already
 running. shmget, shm_open and others all seem reasonably straight forward
 on GNU/Linux and CreateSharedMemory is the Win32 cousin.

 Tor could have/use this default shred mutex to create or read from at
 startup.

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/6937#comment:15>
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