Editing SimTX API/Connection and handshake (section)

== Hello results ==
The server answers every hello with a [[SimTX API/Packets/ServerHello|ServerHello]] as its first frame. Status <code>HELLO_STATUS_ACCEPTED</code> means the session may begin. Any other status is followed by the server closing the connection.

{| class="wikitable"
! Value !! Name !! Meaning
|-
| 0 || <code>HELLO_STATUS_UNSPECIFIED</code> || Not sent by servers. Treat it, and unknown values, as <code>SERVER_UNAVAILABLE</code>.
|-
| 1 || <code>HELLO_STATUS_ACCEPTED</code> || The session may begin.
|-
| 2 || <code>HELLO_STATUS_VERSION_UNSUPPORTED</code> || The preface version is not 25.
|-
| 3 || <code>HELLO_STATUS_AUTHENTICATION_REQUIRED</code> || The role needs a ticket and none was sent. Typical message: <i>This role requires a SimTX account</i>.
|-
| 4 || <code>HELLO_STATUS_CREDENTIAL_INVALID</code> || The ticket is unknown, expired, used, or minted for another server or role. Typical message: <i>Game ticket is invalid or expired</i>.
|-
| 5 || <code>HELLO_STATUS_ACCOUNT_RESTRICTED</code> || The account is restricted.
|-
| 6 || <code>HELLO_STATUS_ROLE_FORBIDDEN</code> || The account lacks the permission the role needs. Typical message: <i>Account is not permitted to transmit</i>.
|-
| 7 || <code>HELLO_STATUS_SERVER_UNAVAILABLE</code> || The server cannot verify the ticket or take the connection now. The only status worth retrying unchanged.
|-
| 8 || <code>HELLO_STATUS_IP_BANNED</code> || The client address is banned. The message gives the reason.
|}

Only <code>SERVER_UNAVAILABLE</code> is worth retrying unchanged. A ticket is single-use, so every retry of an authenticated connection needs a new one.