When a client logs in again with the same run ID, frps replaces the old
control and closes its control stream, but the yamux session that carried it
stays open until keepalive reclaims it. The replaced control's work
connections and streams share that session, so they are left behind for up to
tcpMuxKeepaliveInterval plus the ping budget.
A mux session carries exactly one control connection, so the control now
records its session and closes it from the single teardown point shared by
replacement, fatal exit and shutdown. QUIC and non-multiplexed transports keep
the previous path.
Closing the session ends every stream that still belongs to the replaced
control. Those proxies are already being torn down, so the cost is that
in-flight connections of the old control are interrupted immediately instead
of at the keepalive deadline. A replacement control is not affected, and the
ownership rules for a still-online control do not change.
Tests: replacement and fatal exit close the session while the replacement
control keeps working, and concurrent logins with the same run ID leave
exactly one live session.
Extract closeProxy() helper to eliminate duplicated 4-step cleanup
sequence (Close, PxyManager.Del, metrics, plugin notify) between
worker() and CloseProxy().
Extract loginUserInfo() helper to eliminate 4 repeated plugin.UserInfo
constructions using LoginMsg fields.
Optimize worker() to snapshot and clear the proxies map under lock,
then perform cleanup outside the lock to reduce lock hold time.
Replace 10 positional parameters in NewControl() with a single
SessionContext struct, matching the client-side pattern. This also
eliminates the post-construction mutation of clientRegistry and
removes two TODO comments.
* add close proxy op
* Move to actual closing routine
* Fix e2e tests for CloseProxy
* Add warning on resource exhaustion
* Add CloseProxy to manual close
* retuen errors to `CloseProxy` callers
token is the current token comparison, and oidc generates oidc token using client-credentials flow. in addition - add ping verification using the same method
fatedier
Oleksandr Redko
cui fliter
Harry Cheng
yuyulei
zhang-wei
Guy Lewin