From e3dd7be386d06b11110577018f7f442d9eeb4998 Mon Sep 17 00:00:00 2001 From: Harald Welte Date: Sun, 9 Oct 2011 23:31:19 +0200 Subject: [PATCH] sccp_link_m3ua: Fix typo --- src/sccp_link_m3ua.erl | 109 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 109 insertions(+) create mode 100644 src/sccp_link_m3ua.erl diff --git a/src/sccp_link_m3ua.erl b/src/sccp_link_m3ua.erl new file mode 100644 index 0000000..4bd648a --- /dev/null +++ b/src/sccp_link_m3ua.erl @@ -0,0 +1,109 @@ +% Osmocom adaptor to interface the M3UA core with osmo_sccp + +% (C) 2011 by Harald Welte +% +% All Rights Reserved +% +% This program is free software; you can redistribute it and/or modify +% it under the terms of the GNU Affero General Public License as +% published by the Free Software Foundation; either version 3 of the +% License, or (at your option) any later version. +% +% This program is distributed in the hope that it will be useful, +% but WITHOUT ANY WARRANTY; without even the implied warranty of +% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +% GNU General Public License for more details. +% +% You should have received a copy of the GNU Affero General Public License +% along with this program. If not, see . + +-module(sccp_link_m3ua). +-author('Harald Welte '). +-behavior(gen_server). + +-include_lib("osmo_ss7/include/osmo_util.hrl"). +-include_lib("osmo_ss7/include/m3ua.hrl"). +-include_lib("osmo_ss7/include/sccp.hrl"). + +-include("osmo_sccp.hrl"). + +-export([start_link/1, init/1]). + +-export([handle_cast/2]). + +-record(loop_dat, { + m3ua_pid, + link + }). + +start_link(Args) -> + gen_server:start_link(?MODULE, Args, []). + +init(L = #sigtran_link{type = m3ua, name = Name, linkset_name = LinksetName, + sls = Sls, local = Local, remote = Remote}) -> + #sigtran_peer{ip = LocalIp, port = LocalPort} = Local, + #sigtran_peer{ip = RemoteIp, port = RemotePort} = Remote, + % start the M3UA link to the SG + Opts = [{user_pid, self()}, {sctp_remote_ip, RemoteIp}, + {sctp_remote_port, RemotePort}, {sctp_local_port, LocalPort}, + {user_fun, fun m3ua_tx_to_user/2}, {user_args, self()}], + {ok, M3uaPid} = m3ua_core:start_link(Opts), + % FIXME: register this link with SCCP_SCRC + ok = sccp_links:register_link(LinksetName, Sls, Name), + {ok, #loop_dat{m3ua_pid = M3uaPid, link = L}}. + +% % instantiate SCCP routing instance +% {ok, ScrcPid} = sccp_scrc:start_link([{mtp_tx_action, {callback_fn, fun scrc_tx_to_mtp/2, M3uaPid}}]), +% loop(#loop_dat{m3ua_pid = M3uaPid, scrc_pid = ScrcPid}). + + +set_link_state(#sigtran_link{linkset_name = LinksetName, sls = Sls}, State) -> + ok = sccp_links:set_link_state(LinksetName, Sls, State). + +scrc_tx_to_mtp(Prim, Args) -> + M3uaPid = Args, + gen_fsm:send_event(M3uaPid, Prim). + +% Callback that we pass to the m3ua_core, which it will call when it wants to +% send a primitive up the stack to SCCP +m3ua_tx_to_user(Prim, Args) -> + UserPid = Args, + gen_server:cast(UserPid, Prim). + +% This is what we receive from m3ua_tx_to_user/2 +handle_cast(#primitive{subsystem = 'M', gen_name = 'SCTP_ESTABLISH', spec_name = confirm}, L) -> + io:format("~p: SCTP_ESTABLISH.ind -> ASP_UP.req~n", [?MODULE]), + gen_fsm:send_event(L#loop_dat.m3ua_pid, osmo_util:make_prim('M','ASP_UP',request)), + {noreply, L}; +handle_cast(#primitive{subsystem = 'M', gen_name = 'ASP_UP', spec_name = confirm}, L) -> + io:format("~p: ASP_UP.ind -> ASP_ACTIVE.req~n", [?MODULE]), + set_link_state(L, up), + gen_fsm:send_event(L#loop_dat.m3ua_pid, osmo_util:make_prim('M','ASP_ACTIVE',request)), + {noreply, L}; +handle_cast(#primitive{subsystem = 'M', gen_name = 'ASP_ACTIVE', spec_name = confirm}, L) -> + io:format("~p: ASP_ACTIVE.ind - M3UA now active and ready~n", [?MODULE]), + set_link_state(L, active), + %tx_sccp_udt(L#loop_dat.scrc_pid), + {noreply, L}; +handle_cast(#primitive{subsystem = 'M', gen_name = 'ASP_DOWN'}, L) -> + io:format("~p: ASP_DOWN.ind~n", [?MODULE]), + set_link_state(L, down), + {noreply, L}; +handle_cast(#primitive{subsystem = 'M', gen_name = 'ASP_INACTIVE'}, L) -> + io:format("~p: ASP_DOWN.ind~n", [?MODULE]), + set_link_state(L, inactive), + {noreply, L}; +handle_cast(P, L) -> + io:format("~p: Ignoring M3UA prim ~p~n", [?MODULE, P]), + {noreply, L}. + + +tx_sccp_udt(ScrcPid) -> + CallingP = #sccp_addr{ssn = ?SCCP_SSN_MSC, point_code = osmo_util:pointcode2int(itu, {1,2,2})}, + CalledP = #sccp_addr{ssn = ?SCCP_SSN_HLR, point_code = osmo_util:pointcode2int(itu, {1,1,1})}, + Data = <<1,2,3,4>>, + Opts = [{protocol_class, 0}, {called_party_addr, CalledP}, + {calling_party_addr, CallingP}, {user_data, Data}], + io:format("~p: Sending N-UNITDATA.req to SCRC~n", [?MODULE]), + gen_fsm:send_event(ScrcPid, osmo_util:make_prim('N','UNITDATA',request,Opts)). +