[tor-bugs] #31542 [Core Tor/Tor]: Cannot connect to IPv6 addresses using Tor SOCKS

Tue Aug 27 20:58:59 UTC 2019

#31542: Cannot connect to IPv6 addresses using Tor SOCKS
--------------------------+------------------------------
 Reporter:  sega01        |          Owner:  (none)
     Type:  defect        |         Status:  new
 Priority:  Medium        |      Component:  Core Tor/Tor
  Version:  Tor: 0.4.1.5  |       Severity:  Normal
 Keywords:                |  Actual Points:
Parent ID:                |         Points:
 Reviewer:                |        Sponsor:
--------------------------+------------------------------
 Here is my Tor configuration:

 {{{
 SocksPort 127.0.0.1:9050 IPv6Traffic
 SocksPort [::1]:9050 IPv6Traffic
 DataDirectory /run/tor_client
 ControlPort unix:/run/tor_client/control
 ClientUseIPv6 1
 }}}

 I'm using 0.4.1.5 on Debian 9.

 IPv4 direct addresses are fine:
 {{{
 $ curl -s -x socks5h://127.0.0.1:9050 -v 157.230.170.226
 * Rebuilt URL to: 157.230.170.226/
 *   Trying 127.0.0.1...
 * TCP_NODELAY set
 * SOCKS5 communication to 157.230.170.226:80
 * SOCKS5 request granted.
 * Connected to (nil) (127.0.0.1) port 9050 (#0)
 > GET / HTTP/1.1
 > Host: 157.230.170.226
 > User-Agent: curl/7.52.1
 > Accept: */*
 >
 < HTTP/1.1 301 Moved Permanently
 < Server: nginx
 < Date: Tue, 27 Aug 2019 20:54:51 GMT
 < Content-Type: text/html
 < Content-Length: 178
 < Connection: keep-alive
 < Location: https://157.230.170.226/
 <
 <html>
 <head><title>301 Moved Permanently</title></head>
 <body bgcolor="white">
 <center><h1>301 Moved Permanently</h1></center>
 <hr><center>nginx</center>
 </body>
 </html>
 * Curl_http_done: called premature == 0
 * Connection #0 to host 157.230.170.226 left intact
 $ curl -s -x socks5h://[::1]:9050 -v 157.230.170.226
 * Rebuilt URL to: 157.230.170.226/
 *   Trying ::1...
 * TCP_NODELAY set
 * SOCKS5 communication to 157.230.170.226:80
 * SOCKS5 request granted.
 * Connected to (nil) (::1) port 9050 (#0)
 > GET / HTTP/1.1
 > Host: 157.230.170.226
 > User-Agent: curl/7.52.1
 > Accept: */*
 >
 < HTTP/1.1 301 Moved Permanently
 < Server: nginx
 < Date: Tue, 27 Aug 2019 20:55:03 GMT
 < Content-Type: text/html
 < Content-Length: 178
 < Connection: keep-alive
 < Location: https://157.230.170.226/
 <
 <html>
 <head><title>301 Moved Permanently</title></head>
 <body bgcolor="white">
 <center><h1>301 Moved Permanently</h1></center>
 <hr><center>nginx</center>
 </body>
 </html>
 * Curl_http_done: called premature == 0
 * Connection #0 to host 157.230.170.226 left intact
 }}}

 IPv6 direct addresses do not work:

 {{{
 $ curl -s -x socks5h://[::1]:9050 -v [2604:a880:cad:d0::684e:f001]
 * Rebuilt URL to: [2604:a880:cad:d0::684e:f001]/
 *   Trying ::1...
 * TCP_NODELAY set
 * SOCKS5 communication to 2604:a880:cad:d0::684e:f001:80
 * Can't complete SOCKS5 connection to
 0000:0000:0000:0000:0000:0000:0000:0000:0. (1)
 * Closing connection 0
 $ curl -s -x socks5h://127.0.0.1:9050 -v [2604:a880:cad:d0::684e:f001]
 * Rebuilt URL to: [2604:a880:cad:d0::684e:f001]/
 *   Trying 127.0.0.1...
 * TCP_NODELAY set
 * SOCKS5 communication to 2604:a880:cad:d0::684e:f001:80
 * Can't complete SOCKS5 connection to 0.0.0.0:0. (1)
 * Closing connection 0
 }}}

 What should I test from here?

 Thanks!

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/31542>
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