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bugfix: Clear .hello_acc in mtp_handler when no longer needed

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Before fix accumulator was never cleaned, taking memory.
Clear the accumulator on transition to tunnel stage (handshake complete)
and on transition to fronting stage (data already forwarded to front_sock).
This commit is contained in:
Sergey Prokhorov 2026-04-06 17:43:18 +02:00
parent f24b70db80
commit 26fe4bc0e8
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GPG key ID: 1C570244E4EF3337
1 changed files with 3 additions and 2 deletions
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5
src/mtp_handler.erl
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@ -427,7 +427,8 @@ parse_upstream_data(<<Header:64/binary, Rest/binary>>,
dc_id = {RealDcId, Pool},
codec = Codec,
policy_state = PState,
stage = tunnel},
stage = tunnel,
hello_acc = <<>>},
hibernate));
{error, Reason} when is_atom(Reason) ->
mtp_metric:count_inc([?APP, protocol_error, total], 1, #{labels => [Listener, Reason]}),
@ -538,7 +539,7 @@ do_front(SniDomain, Config, Data, Ip, Listener,
ok = gen_tcp:send(FrontSock, Data),
ok = Transport:setopts(Sock, [{active, once}]),
?LOG_INFO("Domain fronting to ~s:~p for SNI ~s", [Host, Port, SniDomain]),
{ok, S#state{stage = fronting, front_sock = FrontSock}};
{ok, S#state{stage = fronting, front_sock = FrontSock, hello_acc = <<>>}};
{error, Reason} ->
?LOG_WARNING("Domain fronting connect to ~s:~p failed: ~p",
[Host, Port, Reason]),