[tor-bugs] #18628 [Obfuscation/Snowflake]: Devise some way for the browser proxy to forward metadata to the bridge before the OR data

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#18628: Devise some way for the browser proxy to forward metadata to the bridge
before the OR data
-----------------------------------+------------------------------
 Reporter:  arlolra                |          Owner:
     Type:  defect                 |         Status:  needs_review
 Priority:  High                   |      Milestone:
Component:  Obfuscation/Snowflake  |        Version:
 Severity:  Normal                 |     Resolution:
 Keywords:                         |  Actual Points:
Parent ID:                         |         Points:
 Reviewer:                         |        Sponsor:
-----------------------------------+------------------------------
Changes (by cmm32):

 * status:  needs_revision => needs_review


Comment:

 * Most comments addressed. Note client IP address is now added to
 `opt.relayURL` before dialing websocket.


 * As for the ExtORPort USERADDR command, the
 [[https://gitweb.torproject.org/torspec.git/tree/proposals/196-transport-
 control-
 ports.txt?id=f59e8f5b2819842fe6cb5b162a9226a4f1891b4d#n72|documentation]]
 should make the port optional. Internally, the code calls
 `tor_addr_port_split` which
 [[https://gitweb.torproject.org/tor.git/tree/src/common/address.c#n1896|checks
 if IPv6 address is passed]] and ignores the port if it is `AF_INET6`.
 Also, port is optional, see
 [[https://gitweb.torproject.org/tor.git/tree/src/common/address.c#n1896|here]]
 and
 [[https://gitweb.torproject.org/tor.git/tree/src/common/address.c#n1940|here]].

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/18628#comment:6>
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