From fa1ca02d34f407be3dac2edb8b38ac2ab221e91d Mon Sep 17 00:00:00 2001 From: Pau Espin Pedrol Date: Fri, 23 Aug 2019 18:58:53 +0200 Subject: ggsn: Introduce test TC_pdp_act2_recovery Some code is moved out of f_pdp_ctx_act() into f_handle_create_req() in order to re-use it in the test. Related: OS#4165 Change-Id: I48c1bc9287ce8b820e5ea672dffbc5a8503f16d7 --- ggsn_tests/GGSN_Tests.ttcn | 152 ++++++++++++++++++++++++++++++++------------- 1 file changed, 110 insertions(+), 42 deletions(-) (limited to 'ggsn_tests/GGSN_Tests.ttcn') diff --git a/ggsn_tests/GGSN_Tests.ttcn b/ggsn_tests/GGSN_Tests.ttcn index e294fb78..4a53fa14 100644 --- a/ggsn_tests/GGSN_Tests.ttcn +++ b/ggsn_tests/GGSN_Tests.ttcn @@ -267,6 +267,51 @@ module GGSN_Tests { } } + function f_handle_create_req(inout PdpContext ctx, in Gtp1cUnitdata ud, in OCT1 exp_cause := '80'O) runs on GT_CT { + var CreatePDPContextResponse cpr := ud.gtpc.gtpc_pdu.createPDPContextResponse; + if (exp_cause == '80'O and exp_cause == cpr.cause.causevalue) { + /* Check if EUA type corresponds to requested type */ + if (match(ctx.eua, t_EuaIPv4(?)) and + not match(cpr.endUserAddress, tr_EuaIPv4(?))){ + setverdict(fail); + } + if (match(ctx.eua, t_EuaIPv6(?)) and + not match(cpr.endUserAddress, tr_EuaIPv6(?))) { + setverdict(fail); + } + if (match(ctx.eua, t_EuaIPv4v6(?, ?)) and + not match(cpr.endUserAddress, tr_EuaIPv4v6(?, ?))) { + setverdict(fail); + } + /* Check if PCO response corresponds to request */ + if (ispresent(ctx.pco_req)) { + if (match(ctx.pco_req, ts_PCO_IPv4_DNS_CONT) and + not match(cpr.protConfigOptions, tr_PCO_IPv4_DNS_CONT_resp(?))) { + log("IPv4 DNS Container requested, but missing"); + setverdict(fail); + } + if (match(ctx.pco_req, ts_PCO_IPv6_DNS) and + not match(cpr.protConfigOptions, tr_PCO_IPv6_DNS_resp(?))) { + log("IPv6 DNS Container requested, but missing"); + setverdict(fail); + } + } + ctx.teid_remote := cpr.teidDataI.teidDataI; + ctx.teic_remote := cpr.teidControlPlane.teidControlPlane; + ctx.eua := cpr.endUserAddress; + ctx.pco_neg := cpr.protConfigOptions; + setverdict(pass); + } else if (exp_cause != '80'O and exp_cause == cpr.cause.causevalue) { + if (ispresent(cpr.endUserAddress)) { + log("EUA received on createPDPContextResponse cause=" & oct2str(cpr.cause.causevalue)); + setverdict(fail); + } + setverdict(pass); + } else { + setverdict(fail); + } + } + /* send a PDP context activation */ function f_pdp_ctx_act(inout PdpContext ctx, OCT1 exp_cause := '80'O) runs on GT_CT { var Gtp1cUnitdata ud; @@ -280,48 +325,7 @@ module GGSN_Tests { d := activate(pingpong()); alt { [] GTPC.receive(tr_GTPC_MsgType(g_peer_c, createPDPContextResponse, ctx.teic)) -> value ud { - var CreatePDPContextResponse cpr := ud.gtpc.gtpc_pdu.createPDPContextResponse; - if (exp_cause == '80'O and exp_cause == cpr.cause.causevalue) { - /* Check if EUA type corresponds to requested type */ - if (match(ctx.eua, t_EuaIPv4(?)) and - not match(cpr.endUserAddress, tr_EuaIPv4(?))){ - setverdict(fail); - } - if (match(ctx.eua, t_EuaIPv6(?)) and - not match(cpr.endUserAddress, tr_EuaIPv6(?))) { - setverdict(fail); - } - if (match(ctx.eua, t_EuaIPv4v6(?, ?)) and - not match(cpr.endUserAddress, tr_EuaIPv4v6(?, ?))) { - setverdict(fail); - } - /* Check if PCO response corresponds to request */ - if (ispresent(ctx.pco_req)) { - if (match(ctx.pco_req, ts_PCO_IPv4_DNS_CONT) and - not match(cpr.protConfigOptions, tr_PCO_IPv4_DNS_CONT_resp(?))) { - log("IPv4 DNS Container requested, but missing"); - setverdict(fail); - } - if (match(ctx.pco_req, ts_PCO_IPv6_DNS) and - not match(cpr.protConfigOptions, tr_PCO_IPv6_DNS_resp(?))) { - log("IPv6 DNS Container requested, but missing"); - setverdict(fail); - } - } - ctx.teid_remote := cpr.teidDataI.teidDataI; - ctx.teic_remote := cpr.teidControlPlane.teidControlPlane; - ctx.eua := cpr.endUserAddress; - ctx.pco_neg := cpr.protConfigOptions; - setverdict(pass); - } else if (exp_cause != '80'O and exp_cause == cpr.cause.causevalue) { - if (ispresent(cpr.endUserAddress)) { - log("EUA received on createPDPContextResponse cause=" & oct2str(cpr.cause.causevalue)); - setverdict(fail); - } - setverdict(pass); - } else { - setverdict(fail); - } + f_handle_create_req(ctx, ud, exp_cause); } } deactivate(d); @@ -1359,6 +1363,69 @@ module GGSN_Tests { f_pdp_ctx_del(ctx4, '1'B); } + /* Validate if 2nd CtxCreateReq with increased Recovery IE causes ggsn to drop 1st one (while keeping 2nd one). */ + testcase TC_pdp_act2_recovery() runs on GT_CT { + var Gtp1cUnitdata ud; + var default d; + var boolean ctxA_deleted := false; + var boolean ctxB_created := false; + + f_init(); + var PdpContext ctxA := valueof(t_DefinePDP(f_rnd_imsi('26242'H), '1234'O, c_ApnInternet, valueof(t_EuaIPv4Dyn))); + var PdpContext ctxB := valueof(t_DefinePDP(f_rnd_imsi('26242'H), '1234'O, c_ApnInternet, valueof(t_EuaIPv4Dyn))); + f_pdp_ctx_act(ctxA); + + g_restart_ctr := int2oct(oct2int(g_restart_ctr) + 1, 1); + + log("sending 2nd CreatePDP (recovery increased)"); + f_send_gtpc(ts_GTPC_CreatePDP(g_peer_c, g_c_seq_nr, ctxB.imsi, g_restart_ctr, + ctxB.teid, ctxB.teic, ctxB.nsapi, ctxB.eua, ctxB.apn, + g_sgsn_ip_c, g_sgsn_ip_u, ctxB.msisdn, ctxB.pco_req)); + T_default.start; + d := activate(pingpong()); + alt { + [] GTPC.receive(tr_GTPC_MsgType(g_peer_c, createPDPContextResponse, ctxB.teic)) -> value ud { + f_handle_create_req(ctxB, ud); + if (not ctxB_created) { + ctxB_created := true; + setverdict(pass); + } else { + setverdict(fail, "Repeated createPDPContextResponse(ctxB)"); + } + + if (not ctxA_deleted) { + repeat; + } + } + [] GTPC.receive(tr_GTPC_MsgType(g_peer_c, deletePDPContextRequest, ctxA.teic)) -> value ud { + if (ispresent(ud.gtpc.gtpc_pdu.deletePDPContextRequest.tearDownIndicator)) { + setverdict(pass); + } else { + setverdict(fail); + } + + if (not ctxA_deleted) { + ctxA_deleted := true; + setverdict(pass); + } else { + setverdict(fail, "Repeated deletePDPContextRequest(ctxA)"); + } + + if (not ctxB_created) { + repeat; + } + } + [] GTPC.receive(tr_GTPC_MsgType(g_peer_c, deletePDPContextRequest, ctxB.teic)) -> value ud { + setverdict(fail, "GGSN dropping still valid pdp ctx"); + } + } + deactivate(d); + T_default.stop; + + f_pdp_ctx_del(ctxB, '1'B); + } + + /* Send a duplicate echo req. osmo-ggsn maintains a queue for sent responses (60 seconds): If same delete req is sent and duplicate is detected, saved duplicate response should be sent back. */ @@ -1433,6 +1500,7 @@ module GGSN_Tests { execute(TC_pdp46_act_deact_apn4()); execute(TC_echo_req_resp()); + execute(TC_pdp_act2_recovery()); execute(TC_act_deact_retrans_duplicate()); if (m_ggsn_supports_echo_interval) { -- cgit v1.2.3