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-rw-r--r--socks-extensions.txt9
1 files changed, 6 insertions, 3 deletions
diff --git a/socks-extensions.txt b/socks-extensions.txt
index d2c68f1..ab37670 100644
--- a/socks-extensions.txt
+++ b/socks-extensions.txt
@@ -26,18 +26,21 @@ Tor's extensions to the SOCKS protocol
- The BIND command is not supported.
SOCKS4,4A:
- - SOCKS4 usernames are ignored.
+ - SOCKS4 usernames are used to implement stream isolation.
SOCKS5:
- The (SOCKS5) "UDP ASSOCIATE" command is not supported.
- IPv6 is not supported in CONNECT commands.
- The "NO AUTHENTICATION REQUIRED" (SOCKS5) authentication method [00] is
supported; and as of Tor 0.2.3.2-alpha, the "USERNAME/PASSWORD" (SOCKS5)
- authentication method [02] is supported too. Any credentials passed to
- the latter are ignored. As an extension to support some broken clients,
+ authentication method [02] is supported too, and used as a method to
+ implement stream isolation. As an extension to support some broken clients,
we allow clients to pass "USERNAME/PASSWORD" authentication to us even if
no authentication was selected.
+ (For more information on stream isolation, see IsolateSOCKSAuth on the Tor
+ manpage.)
+
2. Name lookup
As an extension to SOCKS4A and SOCKS5, Tor implements a new command value,