ggsn: Add test to verify retransmit queue_resp
Related: OS#3997 Change-Id: I8d937d0af9af8462418b174a54022655f9d77a5f
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9a5f42f997
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@ -300,16 +300,25 @@ module GGSN_Tests {
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T_default.stop;
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T_default.stop;
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}
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}
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function f_pdp_ctx_del(PdpContext ctx, template BIT1 teardown_ind) runs on GT_CT {
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function f_pdp_ctx_del(PdpContext ctx, template BIT1 teardown_ind, OCT1 expect_causevalue := '80'O) runs on GT_CT {
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var Gtp1cUnitdata ud;
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var Gtp1cUnitdata ud;
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var default d;
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var default d;
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var OCT4 expect_teid;
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/* 3GPP TS 29.060 sec 7.3.6 specifies TEID used in response
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message with cause value "Non existent" shall be zero. */
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if (expect_causevalue == 'C0'O) {
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expect_teid := '00000000'O;
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} else {
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expect_teid := ctx.teic;
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}
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f_send_gtpc(ts_GTPC_DeletePDP(g_peer_c, g_c_seq_nr, ctx.teic_remote, ctx.nsapi, teardown_ind));
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f_send_gtpc(ts_GTPC_DeletePDP(g_peer_c, g_c_seq_nr, ctx.teic_remote, ctx.nsapi, teardown_ind));
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T_default.start;
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T_default.start;
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d := activate(pingpong());
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d := activate(pingpong());
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alt {
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alt {
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[] GTPC.receive(tr_GTPC_MsgType(g_peer_c, deletePDPContextResponse, ctx.teic)) -> value ud {
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[] GTPC.receive(tr_GTPC_MsgType(g_peer_c, deletePDPContextResponse, expect_teid)) -> value ud {
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if (ud.gtpc.gtpc_pdu.deletePDPContextResponse.cause.causevalue == '80'O) {
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if (ud.gtpc.gtpc_pdu.deletePDPContextResponse.cause.causevalue == expect_causevalue) {
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setverdict(pass);
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setverdict(pass);
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} else {
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} else {
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setverdict(fail);
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setverdict(fail);
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@ -1244,6 +1253,27 @@ module GGSN_Tests {
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f_pdp_ctx_del(ctxA, '1'B);
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f_pdp_ctx_del(ctxA, '1'B);
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}
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}
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/* Send a duplicate echo req. osmo-ggsn maintains a queue for sent
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responses (60 seconds): If same delete req is sent and duplicate is
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detected, saved duplicate response should be sent back. */
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testcase TC_act_deact_retrans_duplicate() runs on GT_CT {
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f_init();
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var PdpContext ctx := valueof(t_DefinePDP(f_rnd_imsi('26242'H), '1234'O, c_ApnInternet, valueof(t_EuaIPv4Dyn)));
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f_pdp_ctx_act(ctx);
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f_pdp_ctx_del(ctx, '1'B);
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/* leave some time in between to make sure retransmit response queue keeps packets for a while */
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f_sleep(1.0);
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/* g_c_seq_nr was increased during f_pdp_ctx_del(), we want a
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duplicate. If it was not a duplicate, osmo-ggsn would answer
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with a failure since that PDP ctx was already deleted. */
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g_c_seq_nr := g_c_seq_nr - 1;
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f_pdp_ctx_del(ctx, '1'B);
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/* Now send a new pdp ctx del (increased seqnum). It should fail with cause "non-existent": */
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var OCT1 cause_nonexistent := 'C0'O;
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f_pdp_ctx_del(ctx, '1'B, cause_nonexistent);
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}
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control {
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control {
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execute(TC_pdp4_act_deact());
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execute(TC_pdp4_act_deact());
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execute(TC_pdp4_act_deact_ipcp());
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execute(TC_pdp4_act_deact_ipcp());
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@ -1269,5 +1299,6 @@ module GGSN_Tests {
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execute(TC_pdp46_clients_interact());
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execute(TC_pdp46_clients_interact());
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execute(TC_echo_req_resp());
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execute(TC_echo_req_resp());
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execute(TC_act_deact_retrans_duplicate());
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}
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}
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}
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}
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@ -19,4 +19,5 @@
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<testcase classname='GGSN_Tests' name='TC_pdp6_act_deact_gtpu_access' time='MASKED'/>
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<testcase classname='GGSN_Tests' name='TC_pdp6_act_deact_gtpu_access' time='MASKED'/>
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<testcase classname='GGSN_Tests' name='TC_pdp6_clients_interact' time='MASKED'/>
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<testcase classname='GGSN_Tests' name='TC_pdp6_clients_interact' time='MASKED'/>
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<testcase classname='GGSN_Tests' name='TC_echo_req_resp' time='MASKED'/>
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<testcase classname='GGSN_Tests' name='TC_echo_req_resp' time='MASKED'/>
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<testcase classname='GGSN_Tests' name='TC_act_deact_retrans_duplicate' time='MASKED'/>
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</testsuite>
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</testsuite>
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