| module OPCAP_Adapter { |
| |
| /* OPCAP Adapter layer, sitting on top of OPCAP_CodecPort. |
| * test suites can 'inherit' in order to have a OPCAP connection to the IUT which they're testing |
| * |
| * (C) 2021 by Harald Welte <laforge@gnumonks.org> |
| * All rights reserved. |
| * |
| * Released under the terms of GNU General Public License, Version 2 or |
| * (at your option) any later version. |
| */ |
| |
| |
| import from Osmocom_Types all; |
| import from General_Types all; |
| import from OPCAP_Types all; |
| import from OPCAP_Templates all; |
| import from OPCAP_CodecPort all; |
| import from OPCAP_CodecPort_CtrlFunct all; |
| import from IPL4asp_Types all; |
| import from IPL4asp_PortType all; |
| import from Socket_API_Definitions all; |
| |
| const integer NUM_OPCAP := 3; |
| |
| type component OPCAP_Adapter_CT { |
| /* down-facing port to OPCAP Codec port */ |
| port OPCAP_CODEC_PT OPCAP[NUM_OPCAP]; |
| var IPL4asp_Types.ConnectionId g_opcap_conn_id[NUM_OPCAP] := { -1, -1, -1 }; |
| } |
| |
| private function f_set_tcp_segmentation(integer idx) runs on OPCAP_Adapter_CT { |
| /* Set function for dissecting the binary stream into packets */ |
| var f_IPL4_getMsgLen vl_f := refers(f_IPL4_fixedMsgLen); |
| /* Offset: 2, size of length: 2, delta: 4, multiplier: 1, big-endian */ |
| OPCAP_CodecPort_CtrlFunct.f_IPL4_setGetMsgLen(OPCAP[idx], g_opcap_conn_id[idx], vl_f, {2, 2, 4, 1, 0}); |
| } |
| |
| function f_connect(charstring remote_host, IPL4asp_Types.PortNumber remote_port, |
| charstring local_host, IPL4asp_Types.PortNumber local_port, integer idx := 0) |
| runs on OPCAP_Adapter_CT { |
| var IPL4asp_Types.Result res; |
| map(self:OPCAP[idx], system:OPCAP); |
| if (g_opcap_conn_id[idx] != -1) { |
| OPCAP_CodecPort_CtrlFunct.f_IPL4_close(OPCAP[idx], g_opcap_conn_id[idx], {tcp := {}}); |
| g_opcap_conn_id[idx] := -1; |
| } |
| res := OPCAP_CodecPort_CtrlFunct.f_IPL4_connect(OPCAP[idx], remote_host, remote_port, |
| local_host, local_port, 0, { tcp :={} }); |
| if (not ispresent(res.connId)) { |
| setverdict(fail, "Could not connect to OPCAP port, check your configuration ", |
| "{remote ", remote_host, ":", remote_port, " local ", local_host, ":", local_port, "}"); |
| mtc.stop; |
| } |
| g_opcap_conn_id[idx] := res.connId; |
| |
| f_set_tcp_segmentation(idx); |
| } |
| |
| /* Function to use to bind to a local port as IPA server, accepting remote clients */ |
| function f_bind(charstring local_host, IPL4asp_Types.PortNumber local_port, integer idx := 0) |
| runs on OPCAP_Adapter_CT { |
| var IPL4asp_Types.Result res; |
| map(self:OPCAP[idx], system:OPCAP); |
| if (g_opcap_conn_id[idx] != -1) { |
| OPCAP_CodecPort_CtrlFunct.f_IPL4_close(OPCAP[idx], g_opcap_conn_id[idx], {tcp := {}}); |
| g_opcap_conn_id[idx] := -1; |
| } |
| res := OPCAP_CodecPort_CtrlFunct.f_IPL4_listen(OPCAP[idx], local_host, local_port, { tcp:={} }); |
| if (not ispresent(res.connId)) { |
| setverdict(fail, "Could not bind to OPCAP port, check your configuration ", |
| "{local ", local_host, ":", local_port, "}"); |
| mtc.stop; |
| } |
| g_opcap_conn_id[idx] := res.connId; |
| |
| f_set_tcp_segmentation(idx); |
| } |
| |
| function f_wait_client_connect(integer idx) runs on OPCAP_Adapter_CT { |
| var IPL4asp_Types.PortEvent rx_event; |
| OPCAP[idx].receive(IPL4asp_Types.PortEvent:{connOpened:=?}) -> value rx_event { |
| log("Connection from ", rx_event.connOpened.remName, ":", rx_event.connOpened.remPort); |
| /* we want to store the client's connId, not the 'bind socket' one */ |
| g_opcap_conn_id[idx] := rx_event.connOpened.connId; |
| } |
| } |
| |
| function f_disconnect(integer idx) runs on OPCAP_Adapter_CT { |
| OPCAP_CodecPort_CtrlFunct.f_IPL4_close(OPCAP[idx], g_opcap_conn_id[idx], {tcp := {}}); |
| OPCAP[idx].clear; |
| }; |
| |
| function f_opcap_send(template (value) OPCAP_PDU pdu, integer idx := 0) runs on OPCAP_Adapter_CT { |
| OPCAP[idx].send(ts_OPCAP_Send(g_opcap_conn_id[idx], pdu)); |
| } |
| |
| function f_opcap_exp(template OPCAP_PDU exp, integer idx := 0) runs on OPCAP_Adapter_CT return OPCAP_PDU { |
| var OPCAP_RecvFrom rf; |
| OPCAP[idx].receive(tr_OPCAP_Recv(g_opcap_conn_id[idx], exp)) -> value rf; |
| return rf.msg; |
| } |
| |
| |
| } |