WIP
parent
49248de1f9
commit
44da7d743f
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@ -27,24 +27,15 @@
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@id 16777291
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@name diameter_3gpp_ts29_173
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@prefix diameter_aaa
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;;@prefix diameter_3gpp
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@vendor 10415 3GPP
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@inherits diameter_gen_base_rfc6733
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;; @inherits diameter_rfc4005_nasreq
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;; @inherits diameter_rfc4006_cc
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@inherits diameter_3gpp_base
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;; @inherits diameter_etsi_es283_034
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;; @inherits diameter_3gpp_ts29_061_gmb
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;; @inherits diameter_3gpp_ts29_214
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@inherits diameter_3gpp_ts29_229
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@inherits diameter_3gpp_ts29_329
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@inherits diameter_3gpp_break_circles
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;;@inherits diameter_rfc5447
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;;@inherits diameter_rfc5778
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;;@inherits diameter_3gpp_ts29_272
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@avp_types
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3GPP-AAA-Server-Name 318 DiameterIdentity MV ;; from 29.273
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@ -27,7 +27,7 @@
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@id 16777251
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@name diameter_3gpp_ts29_272
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@prefix diameter_aaa
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;;@prefix diameter_3gpp
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@vendor 10415 3GPP
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@inherits diameter_gen_base_rfc6733
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@ -2,7 +2,9 @@
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{deps, [
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{setup, "2.0.2"},
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{lager, "3.6.8"}
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{lager, "3.6.8"},
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{osmo_ss7, {git, "git://git.osmocom.org/erlang/osmo_ss7", {branch, "laforge/wip"}}},
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{osmo_gsup, {git, "git://git.osmocom.org/erlang/osmo_gsup", {branch, "master"}}}
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]}.
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{minimum_otp_vsn, "20.3"}.
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@ -21,8 +23,6 @@
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]}
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]}.
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{dia_first_files, ["diameter_3gpp_base.dia", "diameter_rfc7155_nasreq.dia", "diameter_3gpp_ts29_212.dia", "diameter_3gpp_ts32_299.dia", "diameter_3gpp_ts29_272.dia"]}.
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{dia_opts, []}.
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{dialyzer, [
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@ -1,5 +1,5 @@
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{application, osmo_dia2gsup, [
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{decription, "Osmocom DIAMETER -> GSUP translator"},
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{description, "Osmocom DIAMETER -> GSUP translator"},
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{vsn, "1"},
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{registered, []},
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{applications, [
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@ -25,11 +25,13 @@
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-define(CALLBACK_MOD, server_cb).
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-define(DIAMETER_DICT_HSS, diameter_3gpp_ts29_272).
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-define(APPID_S6, #'diameter_base_Vendor-Specific-Application-Id'{'Vendor-Id'=10515, 'Auth-Application-Id'=[16777251]}).
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-define(SERVICE(Name), [{'Origin-Host', application:get_env(osmo_dia2gsup, origin_host, "hss.localdomain")},
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{'Origin-Realm', applicaiton:get_env(osmo_dia2gsup, origin_realm, "localdomain")},
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{'Origin-Realm', application:get_env(osmo_dia2gsup, origin_realm, "localdomain")},
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{'Vendor-Id', application:get_env(osmo_dia2gsup, vendor_id, 0)},
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{'Product-Name', "osmo_dia2gsup"},
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{'Auth-Application-Id', []},
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{'Vendor-Specific-Application-Id', [?APPID_S6]},
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{application,
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[{alias, ?APP_ALIAS},
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{dictionary, ?DIAMETER_DICT_HSS},
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@ -46,7 +48,7 @@ start_link() ->
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gen_server:start_link({local, ?SERVER}, ?MODULE, [], []).
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start() ->
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application:sensure_all_started(?MODULE),
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application:ensure_all_started(?MODULE),
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start_link().
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stop() ->
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@ -58,13 +60,19 @@ stop() ->
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%% @callback gen_server
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init(State) ->
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% DIAMETER side
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SvcName = ?MODULE,
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diameter:start_service(SvcName, ?SERVICE(SvcName)),
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Ip = application:get_env(osmo_dia2gsup, diameter_ip, "127.0.0.1"),
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Ip = application:get_env(osmo_dia2gsup, diameter_ip, "127.0.0.4"),
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Port = application:get_env(osmo_dia2gsup, diameter_port, 3868),
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Proto = applicaiton:get_env(osmo_dia2gsup, diameter_proto, sctp),
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Proto = application:get_env(osmo_dia2gsup, diameter_proto, sctp),
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listen({address, Proto, element(2,inet:parse_address(Ip)), Port}),
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lager:info("Diameter HSS Application started on IP ~s, ~p port ~p~n", [Ip, Proto, Port]),
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% GSUP side
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HlrIp = application:get_env(osmo_dia2gsup, hlr_ip, "127.0.0.1"),
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HlrPort = application:get_env(osmo_dia2gsup, hlr_port, 4222),
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lager:info("Connecting to GSUP HLR on IP ~s port ~p~n", [HlrIp, HlrPort]),
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{ok, _Pid} = gen_server:start_link({local, gsup_client}, gsup_client, [HlrIp, HlrPort, []], [{debug, [trace]}]),
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{ok, State}.
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%% @callback gen_server
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@ -108,7 +116,7 @@ listen(Name, {address, Protocol, IPAddr, Port}) ->
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TransOpts = [{transport_module, tmod(Protocol)},
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{transport_config, [{reuseaddr, true},
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{ip, IPAddr}, {port, Port}]}],
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diameter:add_transport(Name, {listen, TransOpts}).
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{ok, _} = diameter:add_transport(Name, {listen, TransOpts}).
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listen(Address) ->
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listen(?SVC_NAME, Address).
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@ -4,14 +4,7 @@
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-export([start/2, stop/1]).
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start(_StartType, _StartArgs) ->
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case somo_dia2gsup_sup:start_link() of
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{ok, _} = Net ->
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osmo_dia2gsup_sup:start_childs(SrvSupSpecs),
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ret;
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Other ->
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Other
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end.
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osmo_dia2gsup_sup:start_link().
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stop(_State) ->
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ok.
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@ -0,0 +1,17 @@
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-module(osmo_dia2gsup_sup).
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-behaviour(supervisor).
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-export([start_link/0]).
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-export([init/1]).
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-define(SERVER, ?MODULE).
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start_link() ->
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supervisor:start_link({local, ?SERVER}, ?MODULE, []).
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init([]) ->
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DiaServer = {osmo_dia2gsup,{osmo_dia2gsup,start_link,[]},
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permanent,
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5000,
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worker,
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[server_cb]},
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{ok, { {one_for_one, 5, 10}, [DiaServer]} }.
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@ -4,7 +4,7 @@
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-include_lib("diameter/include/diameter.hrl").
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-include_lib("diameter/include/diameter_gen_base_rfc6733.hrl").
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-include_lib("diameter_3gpp_ts29_272.hrl").
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%-include_lib("diameter_settings.hrl").
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-include_lib("osmo_gsup/include/gsup_protocol.hrl").
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%% diameter callbacks
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@ -37,6 +37,195 @@ handle_error(_Reason, _Request, _SvcName, _Peer) ->
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lager:error("Request error: ~p~n", [_Reason]),
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?UNEXPECTED.
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handle_request(#diameter_packet{}, _SvcName, {_,_}) ->
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lager:error("Unsuppoerted message.~n"),
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% generate Diameter E-UTRAN / UTRAN / GERAN Vectors from GSUP tuple input
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-spec gsup_tuple2dia_eutran('GSUPAuthTuple'(), binary(), integer()) -> #'E-UTRAN-Vector'{}.
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gsup_tuple2dia_eutran(#{autn:=Autn, ck:=Ck, ik:=Ik, rand:=Rand, res:=Res}, Vplmn, Idx) ->
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#'E-UTRAN-Vector'{'Item-Number'=Idx, 'RAND'=Rand, 'XRES'=Res , 'AUTN'=Autn,
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'KASME'=compute_kasme(Ck, Ik, Vplmn, Autn)}.
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-spec gsup_tuple2dia_utran('GSUPAuthTuple'()) -> #'UTRAN-Vector'{}.
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gsup_tuple2dia_utran(#{autn:=Autn, ck:=Ck, ik:=Ik, rand:=Rand, res:=Res}) ->
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#'UTRAN-Vector'{'RAND'=Rand, 'XRES'=Res, 'AUTN'=Autn, 'Confidentiality-Key'=Ck, 'Integrity-Key'=Ik}.
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-spec gsup_tuple2dia_geran('GSUPAuthTuple'()) -> #'GERAN-Vector'{}.
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gsup_tuple2dia_geran(#{rand:=Rand, sres:=Sres, kc:=Kc}) ->
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#'GERAN-Vector'{'RAND'=Rand, 'SRES'=Sres, 'Kc'=Kc}.
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-spec gsup_tuples2dia_eutran(['GSUPAuthTuple'()], binary()) -> [#'E-UTRAN-Vector'{}].
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gsup_tuples2dia_eutran(List, Vplmn) -> gsup_tuples2dia_eutran(List, Vplmn, [], 1).
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gsup_tuples2dia_eutran([], _Vplmn, Out, _Idx) -> Out;
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gsup_tuples2dia_eutran([Head|Tail], Vplmn, Out, Ctr) ->
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Dia = gsup_tuple2dia_eutran(Head, Vplmn, Ctr),
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gsup_tuples2dia_eutran(Tail, Vplmn, [Dia|Out], Ctr+1).
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-type int_or_false() :: false | integer().
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-spec gsup_tuples2dia(['GSUPAuthTuple'()], binary(), int_or_false(), int_or_false(), int_or_false()) -> #'Authentication-Info'{}.
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gsup_tuples2dia(Tuples, Vplmn, NumEutran, NumUtran, NumGeran) ->
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case NumEutran of
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false -> EutranVecs = [];
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0 -> EutranVecs = [];
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_ -> EutranVecs = gsup_tuples2dia_eutran(lists:sublist(Tuples,NumEutran), Vplmn)
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end,
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case NumUtran of
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false -> UtranVecs = [];
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0 -> UtranVecs = [];
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_ -> UtranVecs = lists:map(fun gsup_tuple2dia_utran/1, lists:sublist(Tuples,NumUtran))
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end,
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case NumGeran of
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false -> GeranVecs = [];
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0 -> GeranVecs = [];
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_ -> GeranVecs = lists:map(fun gsup_tuple2dia_geran/1, lists:sublist(Tuples,NumGeran))
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end,
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#'Authentication-Info'{'E-UTRAN-Vector'=EutranVecs, 'UTRAN-Vector'=UtranVecs,
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'GERAN-Vector'=GeranVecs}.
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-spec compute_kasme(<<_:16>>, <<_:16>>, <<_:3>>, <<_:16>>) -> <<_:32>>.
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compute_kasme(Ck, Ik, VplmnId, Autn) ->
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Autn6 = binary_part(Autn, 0, 6),
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K = <<Ck:16/binary, Ik:16/binary>>,
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S = <<16, VplmnId:3/binary, 0, 3, Autn6:6/binary, 0, 6>>,
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crypto:hmac(sha256, K, S, 32).
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-spec req_num_of_vec([tuple()]) -> int_or_false().
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req_num_of_vec([#'Requested-EUTRAN-Authentication-Info'{'Number-Of-Requested-Vectors'=[]}]) -> false;
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req_num_of_vec([#'Requested-EUTRAN-Authentication-Info'{'Number-Of-Requested-Vectors'=[Num]}]) -> Num;
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req_num_of_vec([#'Requested-UTRAN-GERAN-Authentication-Info'{'Number-Of-Requested-Vectors'=[]}]) -> false;
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req_num_of_vec([#'Requested-UTRAN-GERAN-Authentication-Info'{'Number-Of-Requested-Vectors'=[Num]}]) -> Num;
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req_num_of_vec(_) -> false.
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-spec gsup_pdp2dia('GSUPPdpInfo'()) -> #'PDP-Context'{}.
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gsup_pdp2dia(GsupPdpInfo) ->
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#'PDP-Context'{'PDP-Type' = maps:get(pdp_type, GsupPdpInfo),
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'Context-Identifier' = maps:get(pdp_context_id, GsupPdpInfo),
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'PDP-Address' = maps:get(access_point_name, GsupPdpInfo),
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'Service-Selection' = fixme,
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'QoS-Subscribed' = maps:get(quality_of_service, GsupPdpInfo)
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}.
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% transient (only in Experimental-Result-Code)
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-define(DIAMETER_AUTHENTICATION_DATA_UNAVAILABLE, 4181).
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-define(DIAMETER_ERROR_CAMEL_SUBSCRIPTION_PRESENT, 4182).
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% permanent (only in Experimental-Result-Code)
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-define(DIAMETER_ERROR_USER_UNKNOWN, 5001).
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-define(DIAMETER_ERROR_ROAMING_NOT_ALLOWED, 5004).
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-define(DIAMETER_ERROR_UNKNOWN_EPS_SUBSCRIPTION, 5420).
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-define(DIAMETER_ERROR_RAT_NOT_ALLOWED, 5421).
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-define(DIAMETER_ERROR_EQUIPMENT_UNKNOWN, 5422).
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-define(DIAMETER_ERROR_UNKOWN_SERVING_NODE, 5423).
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% 10.5.5.14
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-define(GMM_CAUSE_IMSI_UNKNOWN, 16#02).
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-define(GMM_CAUSE_PLMN_NOTALLOWED, 16#0b).
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-define(GMM_CAUSE_GPRS_NOTALLOWED, 16#07).
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-define(GMM_CAUSE_INV_MAND_INFO, 16#60).
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-define(GMM_CAUSE_NET_FAIL, 16#11).
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% TODO: more values
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-define(EXP_RES(Foo), #'Experimental-Result'{'Vendor-Id'=fixme, 'Experimental-Result-Code'=Foo}).
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-type empty_or_intl() :: [] | [integer()].
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-spec gsup_cause2dia(integer()) -> {empty_or_intl(), empty_or_intl()}.
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gsup_cause2dia(?GMM_CAUSE_IMSI_UNKNOWN) -> {[], [?EXP_RES(?DIAMETER_ERROR_USER_UNKNOWN)]};
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gsup_cause2dia(?GMM_CAUSE_PLMN_NOTALLOWED) -> {[], [?DIAMETER_ERROR_ROAMING_NOT_ALLOWED]};
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gsup_cause2dia(?GMM_CAUSE_GPRS_NOTALLOWED) -> {[], [?DIAMETER_ERROR_RAT_NOT_ALLOWED]};
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%gsup_cause2dia(?GMM_CAUSE_INV_MAND_INFO) ->
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%gsup_cause2dia(?GMM_CAUSE_NET_FAIL) ->
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% TODO: more values
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gsup_cause2dia(_) -> {fixme, []}.
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% get the value for a tiven key in Map1. If not found, try same key in Map2. If not found, return Default
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-spec twomap_get(atom(), map(), map(), any()) -> any().
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twomap_get(Key, Map1, Map2, Default) ->
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maps:get(Key, Map1, maps:get(Key, Map2, Default)).
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handle_request(#diameter_packet{msg = Req, errors = []}, _SvcName, {_, Caps}) when is_record(Req, 'AIR') ->
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lager:info("AIR: ~p~n", [Req]),
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% extract relevant fields from DIAMETER AIR
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#diameter_caps{origin_host = {OH,_}, origin_realm = {OR,_}} = Caps,
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#'AIR'{'Session-Id' = SessionId,
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'User-Name' = UserName,
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'Visited-PLMN-Id' = VplmnId,
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'Requested-EUTRAN-Authentication-Info' = ReqEU,
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'Requested-UTRAN-GERAN-Authentication-Info' = ReqUG} = Req,
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VplmnIdBin = list_to_binary(VplmnId),
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NumEutran = req_num_of_vec(ReqEU),
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NumUgran = req_num_of_vec(ReqUG),
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lager:info("Num EUTRAN=~p, UTRAN=~p~n", [NumEutran, NumUgran]),
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% construct GSUP request to HLR and transceive it
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GsupTx = #{message_type => send_auth_info_req, imsi => list_to_binary(UserName)},
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GsupRx = gen_server:call(gsup_client, {transceive_gsup, GsupTx, send_auth_info_res, send_auth_info_err}),
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lager:info("GsupRx: ~p~n", [GsupRx]),
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% construct DIAMETER AIA response
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case GsupRx of
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#{message_type:=send_auth_info_res, auth_tuples:=GsupAuthTuples} ->
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AuthInfo = gsup_tuples2dia(GsupAuthTuples, VplmnIdBin, NumEutran, NumUgran, NumUgran),
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Resp = #'AIA'{'Session-Id'=SessionId, 'Origin-Host'=OH, 'Origin-Realm'=OR,
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'Result-Code'=2001, 'Auth-Session-State'=1,
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'Authentication-Info'=AuthInfo};
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#{message_type := send_auth_info_err} ->
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Resp = #'AIA'{'Session-Id'=SessionId, 'Origin-Host'=OH, 'Origin-Realm'=OR,
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'Result-Code'=?DIAMETER_ERROR_USER_UNKNOWN,
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'Auth-Session-State'=1};
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timeout ->
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Resp = #'AIA'{'Session-Id'=SessionId, 'Origin-Host'=OH, 'Origin-Realm'=OR,
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'Result-Code'=4181, 'Auth-Session-State'=1}
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end,
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lager:info("Resp: ~p~n", [Resp]),
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{reply, Resp};
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handle_request(#diameter_packet{msg = Req, errors = []}, _SvcName, {_, Caps}) when is_record(Req, 'ULR') ->
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% extract relevant fields from DIAMETER AIR
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#diameter_caps{origin_host = {OH,_}, origin_realm = {OR,_}} = Caps,
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#'ULR'{'Session-Id' = SessionId,
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'RAT-Type' = RatType,
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'ULR-Flags' = UlrFlags,
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'User-Name' = UserName} = Req,
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% construct GSUP UpdateLocation request to HLR and transceive it; expect InsertSubscrDataReq
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GsupTxUlReq = #{message_type => location_upd_req, cn_domain => fixme},
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GsupRxIsdReq = gen_server:call(gsup_client,
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{transceive_gsup, GsupTxUlReq, insert_sub_data_req, location_upd_err}),
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lager:info("GsupRxIsdReq: ~p~n", [GsupRxIsdReq]),
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case GsupRxIsdReq of
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#{message_type:=location_upd_err, cause:=Cause} ->
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{Res, ExpRes} = gsup_cause2dia(Cause),
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Resp = #'ULA'{'Session-Id'= SessionId, 'Auth-Session-State'=1,
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'Origin-Host'=OH, 'Origin-Realm'=OR,
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'Result-Code'=Res, 'Experimental-Result'=ExpRes};
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#{message_type:=insert_sub_data_req} ->
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% construct GSUP InsertSubscrData response to HLR and transceive it; expect
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% UpdateLocationRes
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GsupTxIsdRes = #{message_type => insert_sub_data_res},
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GsupRxUlRes = gen_server:call(gsup_client,
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{transceive_gsup, GsupTxIsdRes, location_upd_res, location_upd_err}),
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lager:info("GsupRxUlRes: ~p~n", [GsupRxUlRes]),
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case GsupRxUlRes of
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#{message_type:=location_upd_res} ->
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Msisdn = twomap_get(msisdn, GsupRxIsdReq, GsupRxUlRes, []),
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Compl = twomap_get(pdp_info_complete, GsupRxIsdReq, GsupRxUlRes, []),
|
||||
PdpInfoList = twomap_get(pdp_info_list, GsupRxIsdReq, GsupRxUlRes, []),
|
||||
PdpContexts = gsup_pdp2dia(PdpInfoList),
|
||||
GSubD = #'GPRS-Subscription-Data'{'Complete-Data-List-Included-Indicator'=[Compl],
|
||||
'PDP-Context'=PdpContexts},
|
||||
SubscrData = #'Subscription-Data'{'MSISDN'=Msisdn,'GPRS-Subscription-Data'=GSubD},
|
||||
Resp = #'ULA'{'Session-Id'= SessionId, 'Auth-Session-State'=1,
|
||||
'Origin-Host'=OH, 'Origin-Realm'=OR,
|
||||
'Result-Code'=2001, 'Subscription-Data'=SubscrData};
|
||||
#{message_type:=location_upd_err, cause:=Cause} ->
|
||||
{Res, ExpRes} = gsup_cause2dia(Cause),
|
||||
Resp = #'ULA'{'Session-Id'= SessionId, 'Auth-Session-State'=1,
|
||||
'Origin-Host'=OH, 'Origin-Realm'=OR,
|
||||
'Result-Code'=Res, 'Experimental-Result'=ExpRes};
|
||||
_ ->
|
||||
Resp = #'ULA'{'Session-Id'= SessionId, 'Auth-Session-State'=1,
|
||||
'Origin-Host'=OH, 'Origin-Realm'=OR,
|
||||
'Result-Code'=fixme}
|
||||
end
|
||||
end,
|
||||
{reply, Resp};
|
||||
|
||||
handle_request(Packet, _SvcName, {_,_}) ->
|
||||
lager:error("Unsuppoerted message: ~p~n", [Packet]),
|
||||
discard.
|
||||
|
|
|
|||
Loading…
Reference in New Issue