[erlang-questions] Upgrading TCP connection to SSL

[Kaiduan Xie]

For TCP upgrading to SSL, client and server coordination is required.
The following is used in XMPP protocol,

1) Client initiates TCP connection,
2) Server accepts the TCP connection,
3) Server sends a message to client to notify client that server
supports TCP upgrade to SSL,
4) Client receives the feature notification from server, and then
client sends starttls to server,
5) Upon receiving starttls from client, server sends back proceed to
client, server waits for SSL handshake,
6) Upon receiving proceed from server, client starts SSL handshake with server.

For more details please refer 5.3.  Client-to-Server Example

www.ietf.org/rfc/rfc3290.txt

Thanks,

/Kaiduan

On Wed, May 25, 2011 at 11:35 AM, tom kelly <ttom.kelly@REDACTED> wrote:
> Hello List,
>
> I've been reading the SSL documentation on upgrading a TCP connection to use
> SSL:
> http://www.erlang.org/doc/apps/ssl/using_ssl.html
>
> I've got a situation where I've accepted a TCP connection which the
> connector has initiated using SSL. It seems I can't at this point upgrade my
> TCP connection to SSL using the standard SSL library?
> If I understand the documentation correctly I need to be in control of both
> ends of the connection to correctly execute this upgrade and in my
> application I'll never be in control of the connecting side.
>
> Does anyone know if this is correct or see something that I'm missing?
> Anyone know any hack-arounds?
>
> Thanks in advance.
>
> //Tom.
>
>
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