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https://github.com/processone/ejabberd.git
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mod_stun_disco: Offer local IPv6 services
Also announce local STUN/TURN services listening on IPv6 sockets (unless the 'offer_local_services' option is set to 'false').
This commit is contained in:
Holger Weiss
parent
83fa637569
commit
f19b975e8d
@ -103,7 +103,7 @@ prepare_turn_opts(Opts, _UseTurn = true) ->
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NumberOfMyHosts = length(ejabberd_option:hosts()),
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TurnIP = case proplists:get_value(turn_v4_ip, Opts) of
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undefined ->
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MyIP = misc:get_my_ip(),
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MyIP = misc:get_my_v4_ip(),
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case MyIP of
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{127, _, _, _} ->
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?WARNING_MSG("Option 'turn_v4_ip' is undefined "
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16
src/misc.erl
16
src/misc.erl
@ -40,8 +40,8 @@
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read_css/1, read_img/1, read_js/1, read_lua/1, try_url/1,
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intersection/2, format_val/1, cancel_timer/1, unique_timestamp/0,
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is_mucsub_message/1, best_match/2, pmap/2, peach/2, format_exception/4,
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get_my_ip/0, parse_ip_mask/1, match_ip_mask/3, format_hosts_list/1,
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format_cycle/1, delete_dir/1]).
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get_my_v4_ip/0, get_my_v6_ip/0, parse_ip_mask/1, match_ip_mask/3,
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format_hosts_list/1, format_cycle/1, delete_dir/1]).
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%% Deprecated functions
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-export([decode_base64/1, encode_base64/1]).
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@ -509,14 +509,22 @@ format_exception(Level, Class, Reason, Stacktrace) ->
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end).
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-endif.
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-spec get_my_ip() -> inet:ip_address().
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get_my_ip() ->
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-spec get_my_v4_ip() -> inet:ip4_address().
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get_my_v4_ip() ->
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{ok, MyHostName} = inet:gethostname(),
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case inet:getaddr(MyHostName, inet) of
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{ok, Addr} -> Addr;
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{error, _} -> {127, 0, 0, 1}
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end.
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-spec get_my_v6_ip() -> inet:ip6_address().
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get_my_v6_ip() ->
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{ok, MyHostName} = inet:gethostname(),
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case inet:getaddr(MyHostName, inet6) of
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{ok, Addr} -> Addr;
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{error, _} -> {0, 0, 0, 0, 0, 0, 0, 1}
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end.
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-spec parse_ip_mask(binary()) -> {ok, {inet:ip4_address(), 0..32}} |
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{ok, {inet:ip6_address(), 0..128}} |
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error.
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@ -266,7 +266,7 @@ get_streamhost(Host, ServerHost) ->
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get_endpoint(Host) ->
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Port = mod_proxy65_opt:port(Host),
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IP = case mod_proxy65_opt:ip(Host) of
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undefined -> misc:get_my_ip();
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undefined -> misc:get_my_v4_ip();
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Addr -> Addr
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end,
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{Port, IP, tcp}.
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@ -233,6 +233,30 @@ mod_doc() ->
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" transport: tcp",
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" restricted: true",
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" -",
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" host: 2001:db8::3",
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" port: 3478",
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" type: stun",
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" transport: udp",
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" restricted: false",
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" -",
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" host: 2001:db8::3",
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" port: 3478",
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" type: turn",
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" transport: udp",
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" restricted: true",
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" -",
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" host: 2001:db8::3",
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" port: 3478",
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" type: stun",
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" transport: tcp",
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" restricted: false",
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" -",
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" host: 2001:db8::3",
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" port: 3478",
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" type: turn",
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" transport: tcp",
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" restricted: true",
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" -",
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" host: server.example.com",
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" port: 5349",
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" type: stuns",
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@ -599,76 +623,87 @@ parse_listener({_EndPoint, ?STUN_MODULE, #{tls := true}}) ->
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?DEBUG("Ignoring TLS-enabled STUN/TURN listener", []),
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[]; % Avoid certificate hostname issues.
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parse_listener({{Port, _Addr, Transport}, ?STUN_MODULE, Opts}) ->
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case get_listener_ip(Opts) of
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{127, _, _, _} = Addr ->
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?INFO_MSG("Won't auto-announce STUN/TURN service with loopback "
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"address: ~s:~B (~s), please specify a public "
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"'turn_v4_ip'", [misc:ip_to_list(Addr), Port, Transport]),
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case get_listener_ips(Opts) of
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{undefined, undefined} ->
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?INFO_MSG("Won't auto-announce STUN/TURN service on port ~B (~s) "
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"without public address, please specify 'turn_v4_ip' and "
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"optionally 'turn_v6_ip'", [Port, Transport]),
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[];
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Addr ->
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Host = maybe_resolve(Addr),
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StunService = #service{host = Host,
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{IPv4Addr, IPv6Addr} ->
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lists:flatmap(
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fun(undefined) ->
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[];
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(Addr) ->
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StunService = #service{host = Addr,
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port = Port,
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transport = Transport,
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restricted = false,
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type = stun},
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case Opts of
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#{use_turn := true} ->
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?INFO_MSG("Going to offer STUN/TURN listener: ~s:~B (~s)",
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[misc:ip_to_list(Addr), Port, Transport]),
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[StunService, #service{host = Host,
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?INFO_MSG("Going to offer STUN/TURN service: "
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"~s (~s)",
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[addr_to_str(Addr, Port), Transport]),
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[StunService,
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#service{host = Addr,
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port = Port,
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transport = Transport,
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restricted = is_restricted(Opts),
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type = turn}];
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#{use_turn := false} ->
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?INFO_MSG("Going to offer STUN listener: ~s:~B (~s)",
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[misc:ip_to_list(Addr), Port, Transport]),
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?INFO_MSG("Going to offer STUN service: "
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"~s (~s)",
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[addr_to_str(Addr, Port), Transport]),
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[StunService]
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end
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end, [IPv4Addr, IPv6Addr])
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end;
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parse_listener({_EndPoint, Module, _Opts}) ->
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?DEBUG("Ignoring ~s listener", [Module]),
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[].
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-spec get_listener_ip(map()) -> inet:ip_address().
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get_listener_ip(#{ip := { 0, 0, 0, 0}} = Opts) -> get_turn_v4_ip(Opts);
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get_listener_ip(#{ip := {127, _, _, _}} = Opts) -> get_turn_v4_ip(Opts);
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get_listener_ip(#{ip := { 10, _, _, _}} = Opts) -> get_turn_v4_ip(Opts);
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get_listener_ip(#{ip := {172, 16, _, _}} = Opts) -> get_turn_v4_ip(Opts);
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get_listener_ip(#{ip := {192, 168, _, _}} = Opts) -> get_turn_v4_ip(Opts);
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get_listener_ip(#{ip := IP}) -> IP.
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-spec get_listener_ips(map()) -> {inet:ip4_address() | undefined,
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inet:ip6_address() | undefined}.
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get_listener_ips(#{ip := {0, 0, 0, 0}} = Opts) ->
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{get_turn_v4_ip(Opts), undefined};
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get_listener_ips(#{ip := {0, 0, 0, 0, 0, 0, 0, 0}} = Opts) ->
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{get_turn_v4_ip(Opts), get_turn_v6_ip(Opts)}; % Assume dual-stack socket.
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get_listener_ips(#{ip := {127, _, _, _}} = Opts) ->
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{get_turn_v4_ip(Opts), undefined};
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get_listener_ips(#{ip := {0, 0, 0, 0, 0, 0, 0, 1}} = Opts) ->
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{undefined, get_turn_v6_ip(Opts)};
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get_listener_ips(#{ip := {_, _, _, _} = IP}) ->
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{IP, undefined};
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get_listener_ips(#{ip := {_, _, _, _, _,_, _, _, _} = IP}) ->
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{undefined, IP}.
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-spec get_turn_v4_ip(map()) -> inet:ip_address().
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get_turn_v4_ip(#{turn_v4_ip := {_, _, _, _} = TurnIP}) -> TurnIP;
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get_turn_v4_ip(#{turn_v4_ip := undefined}) -> misc:get_my_ip().
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-spec is_restricted(map()) -> boolean().
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is_restricted(#{auth_type := user}) -> true;
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is_restricted(#{auth_type := anonymous}) -> false.
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-spec maybe_resolve(inet:ip_address()) -> binary() | inet:ip_address().
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maybe_resolve(Addr) ->
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case lookup(Addr, ptr) of
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[Name] when is_list(Name) ->
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case {lookup(Name, a), lookup(Name, aaaa)} of
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{[Addr], []} ->
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?DEBUG("Resolved address ~s to hostname ~s",
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[misc:ip_to_list(Addr), Name]),
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list_to_binary(Name);
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{_, _} ->
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?DEBUG("Won't resolve address ~s to hostname ~s",
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[misc:ip_to_list(Addr), Name]),
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Addr
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end;
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_ ->
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?DEBUG("Cannot resolve address: ~s", [misc:ip_to_list(Addr)]),
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Addr
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-spec get_turn_v4_ip(map()) -> inet:ip4_address() | undefined.
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get_turn_v4_ip(#{turn_v4_ip := {_, _, _, _} = TurnIP}) ->
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TurnIP;
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get_turn_v4_ip(#{turn_v4_ip := undefined}) ->
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case misc:get_my_v4_ip() of
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{127, _, _, _} ->
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undefined;
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IP ->
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IP
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end.
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-spec lookup(string() | inet:ip_address(), a | aaaa | ptr) -> [any()].
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lookup(Name, Type) ->
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inet_res:lookup(Name, in, Type, [], timer:seconds(3)).
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-spec get_turn_v6_ip(map()) -> inet:ip6_address() | undefined.
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get_turn_v6_ip(#{turn_v6_ip := {_, _, _, _, _, _, _, _} = TurnIP}) ->
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TurnIP;
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get_turn_v6_ip(#{turn_v6_ip := undefined}) ->
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case misc:get_my_v6_ip() of
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{0, 0, 0, 0, 0, 0, 0, 1} ->
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undefined;
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IP ->
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IP
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end.
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-spec is_restricted(map()) -> boolean().
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is_restricted(#{auth_type := user}) ->
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true;
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is_restricted(#{auth_type := anonymous}) ->
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false.
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-spec call(host_or_hash(), term()) -> term().
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call(Host, Request) ->
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@ -697,3 +732,9 @@ dedup([H | T]) -> [H | [E || E <- dedup(T), E /= H]].
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-spec seconds_to_timestamp(non_neg_integer()) -> erlang:timestamp().
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seconds_to_timestamp(Seconds) ->
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{Seconds div 1000000, Seconds rem 1000000, 0}.
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-spec addr_to_str(inet:ip_address(), 0..65535) -> string().
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addr_to_str({_, _, _, _, _, _, _, _} = Addr, Port) ->
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[$[, inet_parse:ntoa(Addr), $], $:, integer_to_list(Port)];
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addr_to_str({_, _, _, _} = Addr, Port) ->
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[inet_parse:ntoa(Addr), $:, integer_to_list(Port)].
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