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emqx
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feat(frame): better log for proxy_protocol config disabled

This commit is contained in:
JimMoen 2021-12-09 16:05:50 +08:00
parent 9a43125c9b
commit b9acf94fd7
2 changed files with 20 additions and 1 deletions
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7
src/emqx_connection.erl
View File

@ -629,10 +629,15 @@ parse_incoming(Data, Packets, State = #state{parse_state = ParseState}) ->
NState = State#state{parse_state = NParseState},
parse_incoming(Rest, [Packet|Packets], NState)
catch
error:proxy_protocol_config_disabled:_Stk ->
?LOG(error,
"~nMalformed packet, "
"please check proxy_protocol config for specific listeners and zones~n"),
{[{frame_error, proxy_protocol_config_disabled} | Packets], State};
error:Reason:Stk ->
?LOG(error, "~nParse failed for ~0p~n~0p~nFrame data:~0p",
[Reason, Stk, Data]),
{[{frame_error, Reason}|Packets], State}
{[{frame_error, Reason} | Packets], State}
end.
-compile({inline, [next_incoming_msgs/1]}).

14
src/emqx_frame.erl
View File

@ -71,6 +71,13 @@
-define(MULTIPLIER_MAX, 16#200000).
%% proxy_protocol v1 header human readable
-define(PPV1_PROXY, "PROXY ").
-define(PPV1_PROXY_UNKNOWN, "PROXY UNKNOWN").
%% proxy_protocol v2 header signature:
%% 16#0D,16#0A, 16#0D,16#0A,16#00,16#0D,16#0A,16#51,16#55,16#49,16#54,16#0A
-define(PPV2_HEADER_SIG, "\r\n\r\n\0\r\nQUIT\n").
-dialyzer({no_match, [serialize_utf8_string/2]}).
%%--------------------------------------------------------------------
@ -100,6 +107,13 @@ parse(Bin) ->
-spec(parse(binary(), parse_state()) -> parse_result()).
parse(<<>>, {none, Options}) ->
{more, {none, Options}};
parse(<<?PPV1_PROXY, IPVer:5/binary, _Rest/binary>>, {none, _Options})
when IPVer =:= <<"TCP4 ">> orelse IPVer =:= <<"TCP6 ">> ->
error(proxy_protocol_config_disabled);
parse(<<?PPV1_PROXY_UNKNOWN, _Rest/binary>>, {none, _Options}) ->
error(proxy_protocol_config_disabled);
parse(<<?PPV2_HEADER_SIG, _Rest/binary>>, {none, _Options}) ->
error(proxy_protocol_config_disabled);
parse(<<Type:4, Dup:1, QoS:2, Retain:1, Rest/binary>>,
{none, Options = #{strict_mode := StrictMode}}) ->
%% Validate header if strict mode.